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>
#include <string.h>
typedef long long ll;

int len;
char str[200005];

int main()
{
    ll ans = 0;
    ll dist = 0;
        
    scanf("%s", str);
    len = strlen(str);

    for (int i = 0; i < len; i++) {
        if (str[i] == 'W') {
            ans += dist;
        }
        else {
            dist++;
        }
    }

    printf("%lld\n", ans);

    return 0;
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	len
	.bss
	.align 4
	.type	len, @object
	.size	len, 4
len:
	.zero	4
	.globl	str
	.align 32
	.type	str, @object
	.size	str, 200005
str:
	.zero	200005
	.section	.rodata
.LC0:
	.string	"%s"
.LC1:
	.string	"%lld\n"
	.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	$0, -16(%rbp)
	movq	$0, -8(%rbp)
	leaq	str(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	str(%rip), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, len(%rip)
	movl	$0, -20(%rbp)
	jmp	.L2
.L5:
	movl	-20(%rbp), %eax
	cltq
	leaq	str(%rip), %rdx
	movzbl	(%rax,%rdx), %eax
	cmpb	$87, %al
	jne	.L3
	movq	-8(%rbp), %rax
	addq	%rax, -16(%rbp)
	jmp	.L4
.L3:
	addq	$1, -8(%rbp)
.L4:
	addl	$1, -20(%rbp)
.L2:
	movl	len(%rip), %eax
	cmpl	%eax, -20(%rbp)
	jl	.L5
	movq	-16(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	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"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	str(%rip), %rbx
	leaq	.LC0(%rip), %rdi
	xorl	%eax, %eax
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	movl	%eax, len(%rip)
	testq	%rax, %rax
	je	.L6
	subl	$1, %eax
	leaq	1(%rbx), %rcx
	movq	%rbx, %rdx
	xorl	%r8d, %r8d
	addq	%rax, %rcx
	xorl	%eax, %eax
	jmp	.L5
	.p2align 4,,10
	.p2align 3
.L3:
	addq	$1, %rdx
	addq	$1, %rax
	cmpq	%rdx, %rcx
	je	.L2
.L5:
	cmpb	$87, (%rdx)
	jne	.L3
	addq	$1, %rdx
	addq	%rax, %r8
	cmpq	%rdx, %rcx
	jne	.L5
.L2:
	movq	%r8, %rdx
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	xorl	%eax, %eax
	popq	%rbx
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	xorl	%r8d, %r8d
	jmp	.L2
	.cfi_endproc
.LFE35:
	.size	main, .-main
	.globl	str
	.bss
	.align 32
	.type	str, @object
	.size	str, 200005
str:
	.zero	200005
	.globl	len
	.align 4
	.type	len, @object
	.size	len, 4
len:
	.zero	4
	.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"
.LC1:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	str(%rip), %rbx
	leaq	.LC0(%rip), %rdi
	xorl	%eax, %eax
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	movl	%eax, len(%rip)
	testq	%rax, %rax
	je	.L6
	subl	$1, %eax
	leaq	1(%rbx), %rcx
	movq	%rbx, %rdx
	xorl	%r8d, %r8d
	addq	%rax, %rcx
	xorl	%eax, %eax
	jmp	.L5
	.p2align 4,,10
	.p2align 3
.L3:
	addq	$1, %rdx
	addq	$1, %rax
	cmpq	%rdx, %rcx
	je	.L2
.L5:
	cmpb	$87, (%rdx)
	jne	.L3
	addq	$1, %rdx
	addq	%rax, %r8
	cmpq	%rdx, %rcx
	jne	.L5
.L2:
	movq	%r8, %rdx
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	xorl	%eax, %eax
	popq	%rbx
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	xorl	%r8d, %r8d
	jmp	.L2
	.cfi_endproc
.LFE35:
	.size	main, .-main
	.globl	str
	.bss
	.align 32
	.type	str, @object
	.size	str, 200005
str:
	.zero	200005
	.globl	len
	.align 4
	.type	len, @object
	.size	len, 4
len:
	.zero	4
	.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>
#include <string.h>
typedef long long ll;

int len;
char str[200005];

int main()
{
    ll ans = 0;
    ll dist = 0;
        
    scanf("%s", str);
    len = strlen(str);

    for (int i = 0; i < len; i++) {
        if (str[i] == 'W') {
            ans += dist;
        }
        else {
            dist++;
        }
    }

    printf("%lld\n", ans);

    return 0;
}

WBWBWB
 BBX
 WBWBVB
 BXB
 WBWBUB
 BYB
 WBWBUC
 CYB
 WBWBTC
 CYA

3
 0
 1
 0
 1
 0
 1
 0
 1
 0

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>
#include <string.h>
typedef long long ll;

int len;
char str[200005];

int main()
{
    ll ans = 0;
    ll dist = 0;
        
    scanf("%s", str);
    len = strlen(str);

    for (int i = 0; i < len; i++) {
        if (str[i] == 'W') {
            ans += dist;
        }
        else {
            dist++;
        }
    }

    printf("%lld\n", ans);

    return 0;
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	len
	.bss
	.align 4
	.type	len, @object
	.size	len, 4
len:
	.zero	4
	.globl	str
	.align 32
	.type	str, @object
	.size	str, 200005
str:
	.zero	200005
	.section	.rodata
.LC0:
	.string	"%s"
.LC1:
	.string	"%lld\n"
	.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	$0, -16(%rbp)
	movq	$0, -8(%rbp)
	leaq	str(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	str(%rip), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, len(%rip)
	movl	$0, -20(%rbp)
	jmp	.L2
.L5:
	movl	-20(%rbp), %eax
	cltq
	leaq	str(%rip), %rdx
	movzbl	(%rax,%rdx), %eax
	cmpb	$87, %al
	jne	.L3
	movq	-8(%rbp), %rax
	addq	%rax, -16(%rbp)
	jmp	.L4
.L3:
	addq	$1, -8(%rbp)
.L4:
	addl	$1, -20(%rbp)
.L2:
	movl	len(%rip), %eax
	cmpl	%eax, -20(%rbp)
	jl	.L5
	movq	-16(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	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
	.globl	len
	.bss
	.align 4
	.type	len, @object
	.size	len, 4
len:
	.zero	4
	.globl	str
	.align 32
	.type	str, @object
	.size	str, 200005
str:
	.zero	200005
	.section	.rodata
.LC0:
	.string	"%s"
.LC1:
	.string	"%lld\n"
	.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	$0, -16(%rbp)
	movq	$0, -8(%rbp)
	leaq	str(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	str(%rip), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, len(%rip)
	movl	$0, -20(%rbp)
	jmp	.L2
.L5:
	movl	-20(%rbp), %eax
	cltq
	leaq	str(%rip), %rdx
	movzbl	(%rax,%rdx), %eax
	cmpb	$87, %al
	jne	.L3
	movq	-8(%rbp), %rax
	addq	%rax, -16(%rbp)
	jmp	.L4
.L3:
	addq	$1, -8(%rbp)
.L4:
	addl	$1, -20(%rbp)
.L2:
	movl	len(%rip), %eax
	cmpl	%eax, -20(%rbp)
	jl	.L5
	movq	-16(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	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:
