user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x74(%rbp)
  lea    -0x70(%rbp),%rax
  mov    %rax,%rsi
  lea    D33(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  movl   $0x0,-0x78(%rbp)
  jmp    L88
L15:
  addl   $0x1,-0x78(%rbp)
L88:
  mov    -0x78(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  test   %al,%al
  jne    L15
  mov    -0x78(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  jne    L51
  mov    -0x78(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,-0x74(%rbp)
  jmp    L61
L42:
  mov    -0x74(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%esi
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x74(%rbp)
L61:
  mov    -0x74(%rbp),%eax
  cmp    -0x78(%rbp),%eax
  jl     L42
  movl   $0x0,-0x74(%rbp)
  jmp    L80
L50:
  mov    -0x74(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%esi
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x74(%rbp)
L80:
  mov    -0x78(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  cmp    %eax,-0x74(%rbp)
  jl     L50
  jmp    L125
L51:
  mov    -0x78(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,-0x74(%rbp)
  jmp    L68
L67:
  mov    -0x74(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%esi
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x74(%rbp)
L68:
  mov    -0x74(%rbp),%eax
  cmp    -0x78(%rbp),%eax
  jl     L67
  mov    -0x78(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%esi
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  movl   $0x0,-0x74(%rbp)
  jmp    L70
L27:
  mov    -0x74(%rbp),%eax
  cltq
  movzbl -0x70(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%esi
  lea    D28(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x74(%rbp)
L70:
  mov    -0x78(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  cmp    %eax,-0x74(%rbp)
  jl     L27
L125:
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L124
  call   <__stack_chk_fail@plt>
L124:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D33
type_guessed: string
name: extract_symbolic_data
arguments: label: D28
type_guessed: string

tool: D33: %s

tool: D28: %c

assistant: ```c
int main() {
  char str[100];
  int i, n = 0;
  scanf("%s", str);
  for (i = 0; str[i] != '\0'; i++)
    ;
  if (i % 2 == 0) {
    for (n = i / 2; n < i; n++) {
      printf("%c", str[n]);
    }
    for (n = 0; n < i / 2; n++) {
      printf("%c", str[n]);
    }
  } else {
    for (n = (i + 1) / 2; n < i; n++) {
      printf("%c", str[n]);
    }
    printf("%c", str[(i - 1) / 2]);
    for (n = 0; n < (i - 1) / 2; n++) {
      printf("%c", str[n]);
    }
  }
  return 0;
}
```