user: 下面的汇编指令对应的C源代码是什么：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    D10(%rip),%rsi
  lea    D20(%rip),%rdi
  call   <fopen@plt>
  mov    %rax,%r13
  lea    0x7(%rsp),%rcx
  lea    0x6(%rsp),%rdx
  lea    D57(%rip),%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  movsbl 0x7(%rsp),%edx
  mov    %edx,%eax
  mulb   0x6(%rsp)
  lea    0x0(,%rax,8),%edi
  movsbl %dil,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  cmpb   $0x0,0x7(%rsp)
  jle    L103
  mov    $0x0,%ebx
  lea    D33(%rip),%r12
L88:
  movsbq %bl,%rax
  lea    0x0(%rbp,%rax,8),%rdx
  mov    %r12,%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  add    $0x1,%ebx
  cmp    %bl,0x7(%rsp)
  jg     L88
L103:
  cmpb   $0x1,0x6(%rsp)
  jle    L51
  mov    $0x1,%r15d
  lea    D33(%rip),%r14
L20:
  movsbl %r15b,%r12d
  movsbl 0x7(%rsp),%eax
  imul   %r12d,%eax
  cltq
  lea    0x0(%rbp,%rax,8),%rdx
  mov    %r14,%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  movzbl 0x7(%rsp),%eax
  cmp    $0x1,%al
  jle    L97
  mov    $0x1,%ebx
L24:
  movsbl %al,%eax
  imul   %r12d,%eax
  cltq
  movsbq %bl,%rdx
  add    %rdx,%rax
  lea    0x0(%rbp,%rax,8),%rdx
  mov    %r14,%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <fscanf@plt>
  movsbl 0x7(%rsp),%ecx
  mov    %r12d,%eax
  imul   %ecx,%eax
  movsbl %bl,%edx
  add    %edx,%eax
  movslq %eax,%rdx
  sub    %ecx,%eax
  cltq
  mov    -0x8(%rbp,%rax,8),%rax
  add    %rax,0x0(%rbp,%rdx,8)
  add    $0x1,%ebx
  movzbl 0x7(%rsp),%eax
  cmp    %bl,%al
  jg     L24
L97:
  add    $0x1,%r15d
  cmp    %r15b,0x6(%rsp)
  jg     L20
L51:
  mov    %r13,%rdi
  call   <fclose@plt>
  movzbl 0x7(%rsp),%edi
  movsbq %dil,%rax
  mov    -0x8(%rbp,%rax,8),%rbx
  lea    -0x1(%rdi,%rdi,1),%edx
  movzbl 0x6(%rsp),%eax
  movsbl %dil,%r8d
  movsbl %al,%esi
  imul   %r8d,%esi
  movsbl %dl,%ecx
  cmp    %esi,%ecx
  jge    L65
L16:
  movsbq %dl,%rcx
  mov    0x0(%rbp,%rcx,8),%rcx
  cmp    %rcx,%rbx
  cmovl  %rcx,%rbx
  add    %edi,%edx
  movsbl %dl,%ecx
  cmp    %esi,%ecx
  jl     L16
L65:
  sub    $0x1,%r8d
  imul   %r8d,%eax
  movsbl %al,%edx
  cmp    %esi,%edx
  jge    L6
L102:
  movsbq %al,%rdx
  mov    0x0(%rbp,%rdx,8),%rdx
  cmp    %rdx,%rbx
  cmovl  %rdx,%rbx
  add    $0x1,%eax
  movsbl %al,%edx
  cmp    %esi,%edx
  jl     L102
L6:
  lea    D68(%rip),%rsi
  lea    D19(%rip),%rdi
  call   <fopen@plt>
  mov    %rax,%rbp
  mov    %rbx,%rdx
  lea    D5(%rip),%rsi
  mov    %rax,%rdi
  call   <fprintf@plt>
  mov    %rbp,%rdi
  call   <fclose@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L59
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L59:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D10
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D20
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D57
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D33
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D68
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D19
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D5
type_guessed: string

tool: D10: r

tool: D20: INP.TXT

tool: D57: %hhd %hhd

tool: D33: %ld

tool: D68: w

tool: D19: OUT.TXT

tool: D5: %ld


assistant: ```c
int main() {
  FILE *f = fopen("INP.TXT", "r");
  char m, n, i, j;
  long *a, r;
  fscanf(f, "%hhd %hhd", &m, &n);
  a = malloc(m * n * sizeof(long));
  for (i = 0; i < n; i++)
    fscanf(f, "%ld", a + i);
  for (i = 1; i < m; i++) {
    fscanf(f, "%ld", a + i * n);
    for (j = 1; j < n; j++) {
      fscanf(f, "%ld", a + i * n + j);
      a[i * n + j] += a[i * n + j - n - 1];
    }
  }
  fclose(f);
  r = a[n - 1];
  for (i = n * 2 - 1; i < m * n; i += n)
    if (a[i] > r)
      r = a[i];
  for (i = m * (n - 1); i < m * n; i++)
    if (a[i] > r)
      r = a[i];
  f = fopen("OUT.TXT", "w");
  fprintf(f, "%ld\n", r);
  fclose(f);
  return 0;
}
```