Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
int main(){
    int m,f,r;
    for(;;){
        scanf("%d %d %d",&m,&f,&r);
        if(m==-1&&f==-1&&r==-1)break;
       else if(m==-1||f==-1)printf("F\n");
        else if (m+f>=80) printf("A\n");
        else if (m+f>=65) printf("B\n");
        else if (m+f>=50) printf("C\n");
        else if (m+f>=30 && r>=50) printf("C\n");
        else if (m+f>=30) printf("D\n");
        else if (m+f<30)  printf("F\n");
    }
    return 0;   
}
         
         
         
          
        
      
     
   

```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d %d %d"
.LC1:
	.string	"F"
.LC2:
	.string	"A"
.LC3:
	.string	"B"
.LC4:
	.string	"C"
.LC5:
	.string	"D"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
.L12:
	leaq	-12(%rbp), %rcx
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-12(%rbp), %eax
	cmpl	$-1, %eax
	je	.L3
.L2:
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	je	.L4
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L5
.L4:
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L5:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$79, %eax
	jle	.L7
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L7:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$64, %eax
	jle	.L8
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L8:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$49, %eax
	jle	.L9
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L9:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L10
	movl	-12(%rbp), %eax
	cmpl	$49, %eax
	jle	.L10
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L10:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L11
	leaq	.LC5(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L11:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jg	.L12
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L6:
	jmp	.L12
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L14
	call	__stack_chk_fail@PLT
.L14:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
user
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d %d %d"
.LC1:
	.string	"F"
.LC2:
	.string	"A"
.LC3:
	.string	"B"
.LC4:
	.string	"C"
.LC5:
	.string	"D"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	leaq	.LC3(%rip), %r15
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	leaq	.LC1(%rip), %r14
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	leaq	.LC0(%rip), %rbx
	subq	$40, %rsp
	.cfi_def_cfa_offset 96
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	20(%rsp), %r13
	leaq	16(%rsp), %r12
	leaq	12(%rsp), %rbp
	.p2align 4,,10
	.p2align 3
.L2:
	movq	%r13, %rcx
	movq	%r12, %rdx
	movq	%rbp, %rsi
	movq	%rbx, %rdi
	xorl	%eax, %eax
	call	scanf@PLT
	movl	12(%rsp), %eax
	cmpl	$-1, %eax
	je	.L15
	movl	16(%rsp), %edx
	cmpl	$-1, %edx
	je	.L5
	addl	%edx, %eax
	cmpl	$79, %eax
	jg	.L16
	cmpl	$64, %eax
	jg	.L17
	cmpl	$49, %eax
	jg	.L11
	cmpl	$29, %eax
	jle	.L5
	cmpl	$49, 20(%rsp)
	jg	.L11
	leaq	.LC5(%rip), %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L15:
	movl	16(%rsp), %eax
	andl	20(%rsp), %eax
	cmpl	$-1, %eax
	je	.L18
.L5:
	movq	%r14, %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L18:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L19
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 56
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L16:
	.cfi_restore_state
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L17:
	movq	%r15, %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L11:
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L2
.L19:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

rule
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d %d %d"
.LC1:
	.string	"F"
.LC2:
	.string	"A"
.LC3:
	.string	"B"
.LC4:
	.string	"C"
.LC5:
	.string	"D"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	leaq	.LC3(%rip), %r15
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	leaq	.LC1(%rip), %r14
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	leaq	.LC0(%rip), %rbx
	subq	$40, %rsp
	.cfi_def_cfa_offset 96
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	20(%rsp), %r13
	leaq	16(%rsp), %r12
	leaq	12(%rsp), %rbp
	.p2align 4,,10
	.p2align 3
.L2:
	movq	%r13, %rcx
	movq	%r12, %rdx
	movq	%rbp, %rsi
	movq	%rbx, %rdi
	xorl	%eax, %eax
	call	scanf@PLT
	movl	12(%rsp), %eax
	cmpl	$-1, %eax
	je	.L15
	movl	16(%rsp), %edx
	cmpl	$-1, %edx
	je	.L5
	addl	%edx, %eax
	cmpl	$79, %eax
	jg	.L16
	cmpl	$64, %eax
	jg	.L17
	cmpl	$49, %eax
	jg	.L11
	cmpl	$29, %eax
	jle	.L5
	cmpl	$49, 20(%rsp)
	jg	.L11
	leaq	.LC5(%rip), %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L15:
	movl	16(%rsp), %eax
	andl	20(%rsp), %eax
	cmpl	$-1, %eax
	je	.L18
.L5:
	movq	%r14, %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L18:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L19
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 56
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L16:
	.cfi_restore_state
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L17:
	movq	%r15, %rdi
	call	puts@PLT
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L11:
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L2
.L19:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

int main(){
    int m,f,r;
    for(;;){
        scanf("%d %d %d",&m,&f,&r);
        if(m==-1&&f==-1&&r==-1)break;
       else if(m==-1||f==-1)printf("F\n");
        else if (m+f>=80) printf("A\n");
        else if (m+f>=65) printf("B\n");
        else if (m+f>=50) printf("C\n");
        else if (m+f>=30 && r>=50) printf("C\n");
        else if (m+f>=30) printf("D\n");
        else if (m+f<30)  printf("F\n");
    }
    return 0;   
}
         
         
         
          
        
      
     
   


40 42 -1
34 30 -1
0 2 -1
-1 -1 -1
 40 42 -1
16 30 -1
0 2 -1
-1 -1 -1
 92 64 -1
16 50 -1
1 1 0
-1 -1 -1
 40 10 -1
16 30 -1
0 2 -1
-1 -1 -1
 40 12 -1
34 30 0
0 2 -1
-1 -1 -1
 40 53 -1
0 7 -1
0 1 -1
-1 -1 -1
 20 11 -2
16 30 0
1 0 -1
-1 -1 -1
 33 42 -1
34 30 0
0 2 -1
-1 -1 -1
 92 78 -1
16 85 -1
1 1 0
-1 -1 -1
 33 42 -1
46 30 0
0 2 -1
-1 -1 -1

A
C
F
 A
D
F
 A
B
F
 C
D
F
 C
C
F
 A
F
F
 D
D
F
 B
C
F
 A
A
F
 B
B
F

Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
int main(){
    int m,f,r;
    for(;;){
        scanf("%d %d %d",&m,&f,&r);
        if(m==-1&&f==-1&&r==-1)break;
       else if(m==-1||f==-1)printf("F\n");
        else if (m+f>=80) printf("A\n");
        else if (m+f>=65) printf("B\n");
        else if (m+f>=50) printf("C\n");
        else if (m+f>=30 && r>=50) printf("C\n");
        else if (m+f>=30) printf("D\n");
        else if (m+f<30)  printf("F\n");
    }
    return 0;   
}
         
         
         
          
        
      
     
   

```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d %d %d"
.LC1:
	.string	"F"
.LC2:
	.string	"A"
.LC3:
	.string	"B"
.LC4:
	.string	"C"
.LC5:
	.string	"D"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
.L12:
	leaq	-12(%rbp), %rcx
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-12(%rbp), %eax
	cmpl	$-1, %eax
	je	.L3
.L2:
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	je	.L4
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L5
.L4:
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L5:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$79, %eax
	jle	.L7
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L7:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$64, %eax
	jle	.L8
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L8:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$49, %eax
	jle	.L9
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L9:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L10
	movl	-12(%rbp), %eax
	cmpl	$49, %eax
	jle	.L10
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L10:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L11
	leaq	.LC5(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L11:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jg	.L12
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L6:
	jmp	.L12
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L14
	call	__stack_chk_fail@PLT
.L14:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
train
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d %d %d"
.LC1:
	.string	"F"
.LC2:
	.string	"A"
.LC3:
	.string	"B"
.LC4:
	.string	"C"
.LC5:
	.string	"D"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
.L12:
	leaq	-12(%rbp), %rcx
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L2
	movl	-12(%rbp), %eax
	cmpl	$-1, %eax
	je	.L3
.L2:
	movl	-20(%rbp), %eax
	cmpl	$-1, %eax
	je	.L4
	movl	-16(%rbp), %eax
	cmpl	$-1, %eax
	jne	.L5
.L4:
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L5:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$79, %eax
	jle	.L7
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L7:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$64, %eax
	jle	.L8
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L8:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$49, %eax
	jle	.L9
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L9:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L10
	movl	-12(%rbp), %eax
	cmpl	$49, %eax
	jle	.L10
	leaq	.LC4(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L6
.L10:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jle	.L11
	leaq	.LC5(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L12
.L11:
	movl	-20(%rbp), %edx
	movl	-16(%rbp), %eax
	addl	%edx, %eax
	cmpl	$29, %eax
	jg	.L12
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L6:
	jmp	.L12
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L14
	call	__stack_chk_fail@PLT
.L14:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
