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

```c
#include<stdio.h>

typedef struct {
	char m_aLetter[4];
}Squares;

int main(void) {
	int i;
	//構造体変数の定義
	Squares astSquares[3];

	//変数にアルファベットを入力
	scanf("%s", &astSquares[0].m_aLetter);
	scanf("%s", &astSquares[1].m_aLetter);
	scanf("%s", &astSquares[2].m_aLetter);

	printf("\n");
	//並んだアルファベットの中で左上、中央、右下の3つを順番に表示
	for (i = 0; i < 3; i++) {
		printf("%c", astSquares[i].m_aLetter[i]);
	}
	printf("\n");

	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%s"
	.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
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$4, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$8, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, -24(%rbp)
	jmp	.L2
.L3:
	movl	-24(%rbp), %eax
	movslq	%eax, %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	addq	%rbp, %rax
	subq	$20, %rax
	movzbl	(%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	addl	$1, -24(%rbp)
.L2:
	cmpl	$2, -24(%rbp)
	jle	.L3
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L5
	call	__stack_chk_fail@PLT
.L5:
	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	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	.LC0(%rip), %rbp
	movq	%rbp, %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	call	__isoc99_scanf@PLT
	leaq	16(%rsp), %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	20(%rsp), %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	$10, %edi
	call	putchar@PLT
	movsbl	12(%rsp), %edi
	call	putchar@PLT
	movsbl	17(%rsp), %edi
	call	putchar@PLT
	movsbl	22(%rsp), %edi
	call	putchar@PLT
	movl	$10, %edi
	call	putchar@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L5
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L5:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	.LC0(%rip), %rbp
	movq	%rbp, %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	call	__isoc99_scanf@PLT
	leaq	16(%rsp), %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	20(%rsp), %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	$10, %edi
	call	putchar@PLT
	movsbl	12(%rsp), %edi
	call	putchar@PLT
	movsbl	17(%rsp), %edi
	call	putchar@PLT
	movsbl	22(%rsp), %edi
	call	putchar@PLT
	movl	$10, %edi
	call	putchar@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L5
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L5:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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:

#include<stdio.h>

typedef struct {
	char m_aLetter[4];
}Squares;

int main(void) {
	int i;
	//構造体変数の定義
	Squares astSquares[3];

	//変数にアルファベットを入力
	scanf("%s", &astSquares[0].m_aLetter);
	scanf("%s", &astSquares[1].m_aLetter);
	scanf("%s", &astSquares[2].m_aLetter);

	printf("\n");
	//並んだアルファベットの中で左上、中央、右下の3つを順番に表示
	for (i = 0; i < 3; i++) {
		printf("%c", astSquares[i].m_aLetter[i]);
	}
	printf("\n");

	return 0;
}
ant
obe
rfc
 ddu
cat
ion
 ant
obe
rcf
 ddu
cat
ioo
 ddu
cat
ooi
 una
obe
rcf
 edu
bau
ooi
 una
pbe
fdr
 una
bep
dfr
 ued
bau
oni


abc
 
dan
 
abf
 
dao
 
dai
 
ubf
 
eai
 
ubr
 
uer
 
uai

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

```c
#include<stdio.h>

typedef struct {
	char m_aLetter[4];
}Squares;

int main(void) {
	int i;
	//構造体変数の定義
	Squares astSquares[3];

	//変数にアルファベットを入力
	scanf("%s", &astSquares[0].m_aLetter);
	scanf("%s", &astSquares[1].m_aLetter);
	scanf("%s", &astSquares[2].m_aLetter);

	printf("\n");
	//並んだアルファベットの中で左上、中央、右下の3つを順番に表示
	for (i = 0; i < 3; i++) {
		printf("%c", astSquares[i].m_aLetter[i]);
	}
	printf("\n");

	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%s"
	.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
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$4, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$8, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, -24(%rbp)
	jmp	.L2
.L3:
	movl	-24(%rbp), %eax
	movslq	%eax, %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	addq	%rbp, %rax
	subq	$20, %rax
	movzbl	(%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	addl	$1, -24(%rbp)
.L2:
	cmpl	$2, -24(%rbp)
	jle	.L3
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L5
	call	__stack_chk_fail@PLT
.L5:
	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	"%s"
	.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
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$4, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-20(%rbp), %rax
	addq	$8, %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, -24(%rbp)
	jmp	.L2
.L3:
	movl	-24(%rbp), %eax
	movslq	%eax, %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	addq	%rbp, %rax
	subq	$20, %rax
	movzbl	(%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	addl	$1, -24(%rbp)
.L2:
	cmpl	$2, -24(%rbp)
	jle	.L3
	movl	$10, %edi
	call	putchar@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L5
	call	__stack_chk_fail@PLT
.L5:
	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:
