user: What would the C source look like for the assembly code provided here:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  lea    -0x19(%rbp),%rcx
  lea    -0x1a(%rbp),%rdx
  lea    -0x10(%rbp),%rax
  mov    %rax,%rsi
  lea    D53(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  movzbl -0x1a(%rbp),%eax
  cmp    $0x69,%al
  jne    L190
  movl   $0x1,-0x18(%rbp)
  jmp    L335
L190:
  movzbl -0x1a(%rbp),%eax
  cmp    $0x66,%al
  jne    L16
  movl   $0x2,-0x18(%rbp)
  jmp    L335
L16:
  movzbl -0x1a(%rbp),%eax
  cmp    $0x79,%al
  jne    L54
  movl   $0x3,-0x18(%rbp)
  jmp    L335
L54:
  movzbl -0x1a(%rbp),%eax
  cmp    $0x6d,%al
  jne    L300
  movl   $0x4,-0x18(%rbp)
  jmp    L335
L300:
  movl   $0x0,-0x18(%rbp)
L335:
  movzbl -0x19(%rbp),%eax
  cmp    $0x69,%al
  jne    L62
  movl   $0x1,-0x14(%rbp)
  jmp    L262
L62:
  movzbl -0x19(%rbp),%eax
  cmp    $0x66,%al
  jne    L52
  movl   $0x2,-0x14(%rbp)
  jmp    L262
L52:
  movzbl -0x19(%rbp),%eax
  cmp    $0x79,%al
  jne    L298
  movl   $0x3,-0x14(%rbp)
  jmp    L262
L298:
  movzbl -0x19(%rbp),%eax
  cmp    $0x6d,%al
  jne    L344
  movl   $0x4,-0x14(%rbp)
  jmp    L262
L344:
  movl   $0x0,-0x14(%rbp)
L262:
  mov    -0x18(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jne    L247
  mov    -0x10(%rbp),%rax
  movq   %rax,%xmm0
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L92
  jmp    L63
L247:
  mov    -0x14(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jle    L220
  cmpl   $0x3,-0x18(%rbp)
  je     L73
  cmpl   $0x3,-0x18(%rbp)
  jg     L6
  cmpl   $0x1,-0x18(%rbp)
  je     L350
  cmpl   $0x2,-0x18(%rbp)
  je     L10
  jmp    L6
L350:
  movsd  -0x10(%rbp),%xmm0
  movsd  D57(%rip),%xmm1
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  addl   $0x1,-0x18(%rbp)
  jmp    L339
L10:
  movsd  -0x10(%rbp),%xmm0
  movsd  D76(%rip),%xmm1
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  addl   $0x1,-0x18(%rbp)
  jmp    L339
L73:
  movsd  -0x10(%rbp),%xmm0
  movsd  D36(%rip),%xmm1
  divsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  addl   $0x1,-0x18(%rbp)
  jmp    L339
L6:
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  jmp    L339
L220:
  cmpl   $0x4,-0x18(%rbp)
  je     L121
  cmpl   $0x4,-0x18(%rbp)
  jg     L2
  cmpl   $0x2,-0x18(%rbp)
  je     L150
  cmpl   $0x3,-0x18(%rbp)
  je     L221
  jmp    L2
L121:
  movsd  -0x10(%rbp),%xmm1
  movsd  D36(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  subl   $0x1,-0x18(%rbp)
  jmp    L339
L221:
  movsd  -0x10(%rbp),%xmm1
  movsd  D76(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  subl   $0x1,-0x18(%rbp)
  jmp    L339
L150:
  movsd  -0x10(%rbp),%xmm1
  movsd  D57(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  %xmm0,-0x10(%rbp)
  subl   $0x1,-0x18(%rbp)
  jmp    L339
L2:
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  nop
L339:
  jmp    L262
L63:
  call   <__stack_chk_fail@plt>
L92:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D53
type: string
name: extract_symbolic_data
arguments: data_tag: D7
type: string
name: extract_symbolic_data
arguments: data_tag: D57
type: byte[8]
name: extract_symbolic_data
arguments: data_tag: D76
type: byte[8]
name: extract_symbolic_data
arguments: data_tag: D36
type: byte[8]

tool: D53: %lf %c %c

tool: D7: %.6lf


tool: {"D57": [0x00,0x00,0x00,0x00,0x00,0x00,0x28,0x40]}

tool: {"D76": [0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x40]}

tool: {"D36": [0x00,0x00,0x00,0x00,0x00,0x80,0x9b,0x40]}

assistant: ```c
int main(void) {
  double amount;
  char fromUnit, toUnit;
  int from = 0, to = 0;
  scanf("%lf %c %c", &amount, &fromUnit, &toUnit);
  if (fromUnit == 'i')
    from = 1;
  else if (fromUnit == 'f')
    from = 2;
  else if (fromUnit == 'y')
    from = 3;
  else if (fromUnit == 'm')
    from = 4;
  else
    from = 0;
  if (toUnit == 'i')
    to = 1;
  else if (toUnit == 'f')
    to = 2;
  else if (toUnit == 'y')
    to = 3;
  else if (toUnit == 'm')
    to = 4;
  else
    to = 0;
  while (1) {
    if (from == to) {
      printf("%.6lf\n", amount);
      return 0;
    }
    if (to > from) {
      switch (from) {
      case 1:
        amount /= 12;
        from++;
        break;
      case 2:
        amount /= 3;
        from++;
        break;
      case 3:
        amount /= 1760;
        from++;
        break;
      default:
        from = to;
        break;
      }
    } else {
      switch (from) {
      case 4:
        amount *= 1760;
        from--;
        break;
      case 3:
        amount *= 3;
        from--;
        break;
      case 2:
        amount *= 12;
        from--;
        break;
      default:
        from = to;
        break;
      }
    }
  }
}
```