user: Demonstrate the C code that generates the assembly output below:

```asm
<lengthOfLongestSubstring>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x240,%rsp
  mov    %rdi,-0x238(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x224(%rbp)
  movl   $0x0,-0x220(%rbp)
  movl   $0x0,-0x21c(%rbp)
  lea    -0x210(%rbp),%rdx
  mov    $0x0,%eax
  mov    $0x40,%ecx
  mov    %rdx,%rdi
  rep stos %rax,%es:(%rdi)
  movl   $0x0,-0x218(%rbp)
  jmp    L56
L59:
  mov    -0x21c(%rbp),%ecx
  mov    -0x220(%rbp),%edx
  mov    -0x224(%rbp),%eax
  mov    %eax,%esi
  lea    D18(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x214(%rbp)
  jmp    L20
L5:
  mov    -0x214(%rbp),%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%eax
  test   %eax,%eax
  je     L97
  mov    -0x214(%rbp),%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%edx
  mov    -0x214(%rbp),%eax
  mov    %eax,%esi
  lea    D34(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L97:
  addl   $0x1,-0x214(%rbp)
L20:
  cmpl   $0x7f,-0x214(%rbp)
  jle    L5
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    -0x218(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x238(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%eax
  cmp    %eax,-0x21c(%rbp)
  jge    L72
  mov    -0x224(%rbp),%edx
  mov    -0x220(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,-0x224(%rbp)
  mov    -0x218(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x238(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%eax
  mov    %eax,-0x21c(%rbp)
  mov    -0x218(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x238(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%edx
  mov    -0x218(%rbp),%eax
  sub    %edx,%eax
  mov    %eax,-0x220(%rbp)
L72:
  mov    -0x21c(%rbp),%ecx
  mov    -0x220(%rbp),%edx
  mov    -0x224(%rbp),%eax
  mov    %eax,%esi
  lea    D38(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x214(%rbp)
  jmp    L49
L18:
  mov    -0x214(%rbp),%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%eax
  test   %eax,%eax
  je     L7
  mov    -0x214(%rbp),%eax
  cltq
  mov    -0x210(%rbp,%rax,4),%edx
  mov    -0x214(%rbp),%eax
  mov    %eax,%esi
  lea    D34(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L7:
  addl   $0x1,-0x214(%rbp)
L49:
  cmpl   $0x7f,-0x214(%rbp)
  jle    L18
  mov    $0xa,%edi
  call   <putchar@plt>
  addl   $0x1,-0x218(%rbp)
  mov    -0x218(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x238(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cltq
  mov    -0x218(%rbp),%edx
  mov    %edx,-0x210(%rbp,%rax,4)
  addl   $0x1,-0x220(%rbp)
L56:
  mov    -0x218(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x238(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L59
  mov    -0x220(%rbp),%edx
  mov    -0x224(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L66
  call   <__stack_chk_fail@plt>
L66:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D18
datatype: string
name: parse_data
arguments: data_label: D34
datatype: string
name: parse_data
arguments: data_label: D38
datatype: string

tool: D18: bef: longest = %d, currentLength = %d, start = %d


tool: D34: pos[%c] = %d 

tool: D38: aft: longest = %d, currentLength = %d, start = %d


assistant: ```c
int lengthOfLongestSubstring(char *s) {
  int longest = 0, currentLength = 0, start = 0, position[128] = {0};
  int i, j;
  for (i = 0; s[i]; position[s[i]] = ++i, currentLength++) {
    printf("bef: longest = %d, currentLength = %d, start = %d\n", longest, currentLength, start);
    for (j = 0; j < 128; ++j) {
      if (position[j]) {
        printf("pos[%c] = %d ", j, position[j]);
      }
    }
    printf("\n");
    if (position[s[i]] > start) {
      longest = (longest > currentLength) ? longest : currentLength;
      start = position[s[i]];
      currentLength = i - position[s[i]];
    }
    printf("aft: longest = %d, currentLength = %d, start = %d\n", longest, currentLength, start);
    for (j = 0; j < 128; ++j) {
      if (position[j]) {
        printf("pos[%c] = %d ", j, position[j]);
      }
    }
    printf("\n");
  }
  return (longest > currentLength) ? longest : currentLength;
}
```