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

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xcd0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movabs $0x4847464544434241,%rax
  movabs $0x4f6e4e4d4c4b4a49,%rdx
  mov    %rax,-0x800(%rbp)
  mov    %rdx,-0x7f8(%rbp)
  movabs $0x5756555453525150,%rax
  mov    %rax,-0x7f0(%rbp)
  movl   $0x2a5a5958,-0x7e8(%rbp)
  movb   $0x0,-0x7e4(%rbp)
  movl   $0x2,-0xcc4(%rbp)
  lea    D53(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    -0xcd0(%rbp),%rax
  mov    %rax,%rsi
  lea    D65(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  lea    -0xccc(%rbp),%rax
  mov    %rax,%rsi
  lea    D65(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  lea    D50(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    -0x7e0(%rbp),%rax
  mov    %rax,%rsi
  lea    D35(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  movl   $0x0,-0xcc0(%rbp)
  jmp    L53
L12:
  movl   $0x0,-0xcbc(%rbp)
  jmp    L70
L110:
  mov    -0xcbc(%rbp),%eax
  movslq %eax,%rcx
  mov    -0xcc0(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  add    %rcx,%rax
  movl   $0x0,-0xcb0(%rbp,%rax,4)
  addl   $0x1,-0xcbc(%rbp)
L70:
  cmpl   $0x2,-0xcbc(%rbp)
  jle    L110
  addl   $0x1,-0xcc0(%rbp)
L53:
  cmpl   $0x63,-0xcc0(%rbp)
  jle    L12
  movl   $0x1,-0xcac(%rbp)
  movl   $0x1,-0xc9c(%rbp)
  mov    -0xcd0(%rbp),%eax
  mov    %eax,-0xcb0(%rbp)
  movl   $0x1c,-0xca4(%rbp)
L68:
  mov    -0xcc4(%rbp),%eax
  sub    $0x2,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    (%rax),%edx
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  add    %rax,%rax
  add    %rcx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    (%rax),%ecx
  mov    %edx,%eax
  cltd
  idiv   %ecx
  mov    %eax,-0xcb8(%rbp)
  mov    -0xcc4(%rbp),%eax
  sub    $0x2,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    (%rax),%edx
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  add    %rax,%rax
  add    %rcx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    (%rax),%ecx
  mov    %edx,%eax
  cltd
  idiv   %ecx
  mov    %edx,%ecx
  mov    -0xcc4(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    %ecx,(%rax)
  mov    -0xcc4(%rbp),%eax
  sub    $0x2,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%ecx
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%eax
  imul   -0xcb8(%rbp),%eax
  sub    %eax,%ecx
  mov    -0xcc4(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    %ecx,(%rax)
  mov    -0xcc4(%rbp),%eax
  sub    $0x2,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xca8,%rax
  mov    (%rax),%ecx
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xca8,%rax
  mov    (%rax),%eax
  imul   -0xcb8(%rbp),%eax
  sub    %eax,%ecx
  mov    -0xcc4(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xca8,%rax
  mov    %ecx,(%rax)
  mov    -0xcc4(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcb0,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  je     L37
  addl   $0x1,-0xcc4(%rbp)
  jmp    L68
L37:
  nop
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%edx
  mov    -0xcd0(%rbp),%eax
  mov    %eax,%esi
  lea    D58(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%edx
  mov    -0xcd0(%rbp),%eax
  mov    %edx,%ecx
  imul   %eax,%ecx
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%edx
  mov    -0xcd0(%rbp),%eax
  mov    %eax,%esi
  lea    D22(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0xcc4(%rbp),%eax
  sub    $0x1,%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  shl    $0x2,%rax
  add    %rbp,%rax
  sub    $0xcac,%rax
  mov    (%rax),%eax
  movslq %eax,%rdx
  imul   $0xffffffff92492493,%rdx,%rdx
  shr    $0x20,%rdx
  add    %eax,%edx
  sar    $0x4,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  mov    %edx,-0xcb4(%rbp)
  mov    -0xcb4(%rbp),%edx
  imul   $0x1c,%edx,%edx
  sub    %edx,%eax
  mov    %eax,-0xcb4(%rbp)
  movl   $0x0,-0xcc4(%rbp)
  jmp    L75
L32:
  movl   $0x0,-0xcc8(%rbp)
  movl   $0x0,-0xcc0(%rbp)
  jmp    L33
L115:
  mov    -0xcc4(%rbp),%eax
  cltq
  movzbl -0x7e0(%rbp,%rax,1),%edx
  mov    -0xcc0(%rbp),%eax
  cltq
  movzbl -0x800(%rbp,%rax,1),%eax
  cmp    %al,%dl
  jne    L99
  mov    -0xccc(%rbp),%edx
  mov    -0xcc0(%rbp),%eax
  sub    %edx,%eax
  imul   -0xcb4(%rbp),%eax
  add    $0xaf0,%eax
  movslq %eax,%rdx
  imul   $0xffffffff92492493,%rdx,%rdx
  shr    $0x20,%rdx
  add    %eax,%edx
  sar    $0x4,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x1c,%edx,%ecx
  sub    %ecx,%eax
  mov    %eax,%edx
  movslq %edx,%rax
  movzbl -0x800(%rbp,%rax,1),%edx
  mov    -0xcc4(%rbp),%eax
  cltq
  mov    %dl,-0x3f0(%rbp,%rax,1)
  movl   $0x1,-0xcc8(%rbp)
L99:
  addl   $0x1,-0xcc0(%rbp)
L33:
  cmpl   $0x0,-0xcc8(%rbp)
  je     L115
  addl   $0x1,-0xcc4(%rbp)
L75:
  lea    -0x7e0(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0xcc4(%rbp)
  jl     L32
  mov    -0xcc4(%rbp),%eax
  cltq
  movb   $0x0,-0x3f0(%rbp,%rax,1)
  lea    -0x3f0(%rbp),%rax
  mov    %rax,%rsi
  lea    D37(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L62
  call   <__stack_chk_fail@plt>
L62:
  leave
  ret
```

tool_calls: name: read_data
arguments: data_tag: D53
datatype: string
name: read_data
arguments: data_tag: D65
datatype: string
name: read_data
arguments: data_tag: D50
datatype: string
name: read_data
arguments: data_tag: D35
datatype: string
name: read_data
arguments: data_tag: D58
datatype: string
name: read_data
arguments: data_tag: D22
datatype: string
name: read_data
arguments: data_tag: D37
datatype: string

tool: D53: Introduce los dos numeros del criptosistema afin: 

tool: D65: %d

tool: D50: Introduce el mensaje a decodificar: 

tool: D35: %s

tool: D58: El inverso de %d modulo 28 es %d


tool: D22: Comprobamos: %d * %d = %d


tool: D37: Mensaje decodificado: 
%s

assistant: ```c
int main(void) {
  int a, b;
  int a_inv;
  int D;
  char clave[] = "ABCDEFGHIJKLMNnOPQRSTUVWXYZ*";
  char mensaje[1000];
  char decodificado[1000];
  int codif;
  int matriz[100][3];
  int i = 2;
  int cociente;
  int j, k;
  printf("Introduce los dos numeros del criptosistema afin: \n");
  scanf("%d", &a);
  scanf("%d", &b);
  printf("Introduce el mensaje a decodificar: \n");
  scanf("%s", mensaje);
  for (j = 0; j < 100; j++) {
    for (k = 0; k < 3; k++) {
      matriz[j][k] = 0;
    }
  }
  matriz[0][1] = 1;
  matriz[1][2] = 1;
  matriz[0][0] = a;
  matriz[1][0] = 28;
  while (1) {
    cociente = (matriz[i - 2][0] / matriz[i - 1][0]);
    matriz[i][0] = (matriz[i - 2][0] % matriz[i - 1][0]);
    matriz[i][1] = (matriz[i - 2][1] - (cociente * matriz[i - 1][1]));
    matriz[i][2] = (matriz[i - 2][2] - (cociente * matriz[i - 1][2]));
    if (matriz[i][0] == 0)
      break;
    i++;
  }
  printf("El inverso de %d modulo 28 es %d\n", a, matriz[i - 1][1]);
  printf("Comprobamos: %d * %d = %d\n", a, matriz[i - 1][1], matriz[i - 1][1] * a);
  a_inv = (matriz[i - 1][1] % 28);
  for (i = 0; i < strlen(mensaje); i++) {
    codif = 0;
    j = 0;
    while (codif == 0) {
      if (mensaje[i] == clave[j]) {
        decodificado[i] = clave[((a_inv * (j - b)) + 2800) % 28];
        codif = 1;
      }
      j++;
    }
  }
  decodificado[i] = '\0';
  printf("Mensaje decodificado: \n%s", decodificado);
  getchar();
  getchar();
}
```