user: Please show me the C implementation that matches the assembly code listed below:

```asm
<debug_find_path>:
  endbr64
  push   %r15
  mov    %esi,%r15d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  cmp    $0x13,%esi
  jne    L40
  cmp    $0x13,%edx
  je     L73
L40:
  lea    D12(%rip),%r12
  lea    D49(%rip),%r13
  nopw   0x0(%rax,%rax,1)
L12:
  mov    (%rbx),%eax
  test   %eax,%eax
  je     L43
  cmp    $0x1,%eax
  jne    L30
  cmpl   $0x1,0x4(%rbx)
  je     L3
  cmpl   $0x1,0x50(%rbx)
  je     L10
  cmpl   $0x1,-0x4(%rbx)
  movl   $0x0,0x50(%rbx)
  lea    -0x4(%rbx),%r14
  movl   $0x0,(%rbx)
  jne    L30
  sub    $0x1,%ebp
  mov    %r15d,%ecx
  mov    $0x1,%edx
  mov    %r14,%rsi
  mov    %ebp,%r8d
  mov    %r12,%rdi
  xor    %eax,%eax
  mov    %r14,%rbx
  call   <printf@plt>
L4:
  cmp    $0x13,%r15d
  jne    L12
  cmp    $0x13,%ebp
  jne    L12
L73:
  lea    D30(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
L30:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L3:
  add    $0x4,%rbx
  add    $0x1,%ebp
  mov    %r15d,%ecx
  mov    $0x1,%edx
  mov    %ebp,%r8d
  mov    %rbx,%rsi
  mov    %r13,%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L4
  nopl   0x0(%rax)
L10:
  add    $0x50,%rbx
  add    $0x1,%r15d
  mov    %ebp,%r8d
  mov    $0x1,%edx
  mov    %r15d,%ecx
  mov    %rbx,%rsi
  lea    D36(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L4
  nopl   0x0(%rax)
L43:
  lea    D9(%rip),%rdi
  call   <puts@plt>
  jmp    L30
```

tool_calls: name: retrieve_data
arguments: data_tag: D12
type_guessed: string
name: retrieve_data
arguments: data_tag: D49
type_guessed: string
name: retrieve_data
arguments: data_tag: D30
type_guessed: string
name: retrieve_data
arguments: data_tag: D36
type_guessed: string
name: retrieve_data
arguments: data_tag: D9
type_guessed: string

tool: D12: Pointer shifted left row. 
 Pointer Adress: %d 
 Pointer value: %d (%d,%d)



tool: D49: Pointer shifted right column. 
 Pointer Adress: %d 
 Pointer value: %d (%d,%d)



tool: D30: Shortest Path

tool: D36: Pointer shifted bottom row. 
 Pointer Adress: %d 
 Pointer value: %d (%d,%d)



tool: D9: No shortest path from (0,0) to (19,19).

assistant: ```c
int debug_find_path(int *ptr, int last_row, int last_column) {
  if (last_row == 19 && last_column == 19) {
    printf("Shortest Path");
    return 0;
  }
  if (*(ptr) == 0) {
    printf("No shortest path from (0,0) to (19,19).\n");
    return 0;
  } else if (*(ptr) == 1) {
    ptr++;
    if (*(ptr) == 1) {
      last_column++;
      printf("Pointer shifted right column. \n Pointer Adress: %d \n Pointer value: %d (%d,%d)\n\n", ptr, *(ptr), last_row, last_column);
      return debug_find_path(ptr, last_row, last_column);
    }
    ptr--;
    ptr += 20;
    if (*(ptr) == 1) {
      last_row++;
      printf("Pointer shifted bottom row. \n Pointer Adress: %d \n Pointer value: %d (%d,%d)\n\n", ptr, *(ptr), last_row, last_column);
      return debug_find_path(ptr, last_row, last_column);
    }
    *(ptr) = 0;
    ptr -= 20;
    *(ptr) = 0;
    ptr--;
    if (*(ptr) == 1) {
      last_column--;
      printf("Pointer shifted left row. \n Pointer Adress: %d \n Pointer value: %d (%d,%d)\n\n", ptr, *(ptr), last_row, last_column);
      return debug_find_path(ptr, last_row, last_column);
    }
  }
  return 0;
}
```