user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %r12d,%r11d
  push   %rbx
  sub    $0xa8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x98(%rsp)
  xor    %eax,%eax
  lea    0x70(%rsp),%rax
  movl   $0x0,0x30(%rsp)
  mov    %rax,0x28(%rsp)
L172:
  movl   $0x2,0x50(%rsp)
  mov    $0x2,%r12d
  mov    %r11d,0x14(%rsp)
  mov    %r12d,%r11d
L44:
  movl   $0x1,0x70(%rsp)
  movl   $0x1,0xc(%rsp)
  mov    %r11d,0x18(%rsp)
L225:
  movl   $0x0,0x34(%rsp)
  xor    %ecx,%ecx
L244:
  movl   $0x2,0x54(%rsp)
  mov    $0x2,%r8d
  mov    %ecx,0x1c(%rsp)
  mov    %r8d,%ecx
L52:
  movl   $0x1,0x74(%rsp)
  movl   $0x1,0x10(%rsp)
  mov    %ecx,0x20(%rsp)
L2:
  movl   $0x0,0x38(%rsp)
  xor    %ecx,%ecx
L256:
  movl   $0x2,0x58(%rsp)
  mov    $0x2,%edx
  mov    %ecx,0x24(%rsp)
L270:
  movl   $0x1,0x78(%rsp)
  mov    $0x1,%ecx
L25:
  movl   $0x0,0x3c(%rsp)
  xor    %esi,%esi
L126:
  movl   $0x2,0x5c(%rsp)
  mov    $0x2,%edi
L39:
  movl   $0x1,0x7c(%rsp)
  mov    $0x1,%r8d
L64:
  movl   $0x0,0x40(%rsp)
  xor    %r9d,%r9d
L251:
  movl   $0x2,0x60(%rsp)
  mov    $0x2,%r10d
L51:
  movl   $0x1,0x80(%rsp)
  mov    $0x1,%r11d
L173:
  movl   $0x0,0x44(%rsp)
  xor    %ebx,%ebx
L204:
  movl   $0x2,0x64(%rsp)
  mov    $0x2,%ebp
  nopl   0x0(%rax)
L22:
  movl   $0x1,0x84(%rsp)
  mov    $0x1,%r12d
  nopl   0x0(%rax)
L107:
  movl   $0x0,0x48(%rsp)
  xor    %r13d,%r13d
  nopl   0x0(%rax,%rax,1)
L208:
  movl   $0x2,0x68(%rsp)
  mov    $0x2,%r14d
L24:
  movl   $0x1,0x88(%rsp)
  mov    $0x1,%eax
L119:
  mov    0x18(%rsp),%r15d
  sub    $0x1,%r15d
  imul   0xc(%rsp),%r15d
  add    0x14(%rsp),%r15d
  cmp    $0x3,%r15d
  jg     L258
  mov    0x20(%rsp),%r15d
  sub    $0x1,%r15d
  imul   0x10(%rsp),%r15d
  add    0x1c(%rsp),%r15d
  cmp    $0x3,%r15d
  jg     L258
  lea    -0x1(%rdx),%r15d
  imul   %ecx,%r15d
  add    0x24(%rsp),%r15d
  cmp    $0x3,%r15d
  jg     L258
  lea    -0x1(%rdi),%r15d
  imul   %r8d,%r15d
  add    %esi,%r15d
  cmp    $0x3,%r15d
  jg     L258
  lea    -0x1(%r10),%r15d
  imul   %r11d,%r15d
  add    %r9d,%r15d
  cmp    $0x3,%r15d
  jg     L258
  lea    -0x1(%rbp),%r15d
  imul   %r12d,%r15d
  add    %ebx,%r15d
  cmp    $0x3,%r15d
  jg     L258
  lea    -0x1(%r14),%r15d
  imul   %r15d,%eax
  add    %r13d,%eax
  cmp    $0x3,%eax
  jg     L258
  mov    0x28(%rsp),%rdx
  lea    0x50(%rsp),%rsi
  lea    0x30(%rsp),%rdi
  call   <test@plt>
  mov    0x38(%rsp),%eax
  mov    0x68(%rsp),%r14d
  mov    0x48(%rsp),%r13d
  mov    0x84(%rsp),%r12d
  mov    0x64(%rsp),%ebp
  mov    0x44(%rsp),%ebx
  mov    %eax,0x24(%rsp)
  mov    0x74(%rsp),%eax
  mov    0x80(%rsp),%r11d
  mov    0x60(%rsp),%r10d
  mov    0x40(%rsp),%r9d
  mov    0x7c(%rsp),%r8d
  mov    0x5c(%rsp),%edi
  mov    %eax,0x10(%rsp)
  mov    0x54(%rsp),%eax
  mov    0x3c(%rsp),%esi
  mov    0x78(%rsp),%ecx
  mov    0x58(%rsp),%edx
  mov    %eax,0x20(%rsp)
  mov    0x34(%rsp),%eax
  mov    %eax,0x1c(%rsp)
  mov    0x70(%rsp),%eax
  mov    %eax,0xc(%rsp)
  mov    0x50(%rsp),%eax
  mov    %eax,0x18(%rsp)
  mov    0x30(%rsp),%eax
  mov    %eax,0x14(%rsp)
L258:
  mov    0x88(%rsp),%eax
  add    $0x1,%eax
  mov    %eax,0x88(%rsp)
  cmp    $0x3,%eax
  jle    L119
  add    $0x1,%r14d
  mov    %r14d,0x68(%rsp)
  cmp    $0x4,%r14d
  jle    L24
  add    $0x1,%r13d
  mov    %r13d,0x48(%rsp)
  cmp    $0x3,%r13d
  jle    L208
  add    $0x1,%r12d
  mov    %r12d,0x84(%rsp)
  cmp    $0x3,%r12d
  jle    L107
  add    $0x1,%ebp
  mov    %ebp,0x64(%rsp)
  cmp    $0x4,%ebp
  jle    L22
  add    $0x1,%ebx
  mov    %ebx,0x44(%rsp)
  cmp    $0x3,%ebx
  jle    L204
  add    $0x1,%r11d
  mov    %r11d,0x80(%rsp)
  cmp    $0x3,%r11d
  jle    L173
  add    $0x1,%r10d
  mov    %r10d,0x60(%rsp)
  cmp    $0x4,%r10d
  jle    L51
  add    $0x1,%r9d
  mov    %r9d,0x40(%rsp)
  cmp    $0x3,%r9d
  jle    L251
  add    $0x1,%r8d
  mov    %r8d,0x7c(%rsp)
  cmp    $0x3,%r8d
  jle    L64
  add    $0x1,%edi
  mov    %edi,0x5c(%rsp)
  cmp    $0x4,%edi
  jle    L39
  add    $0x1,%esi
  mov    %esi,0x3c(%rsp)
  cmp    $0x3,%esi
  jle    L126
  add    $0x1,%ecx
  mov    %ecx,0x78(%rsp)
  cmp    $0x3,%ecx
  jle    L25
  add    $0x1,%edx
  mov    %edx,0x58(%rsp)
  cmp    $0x4,%edx
  jle    L270
  mov    0x24(%rsp),%ecx
  add    $0x1,%ecx
  mov    %ecx,0x38(%rsp)
  cmp    $0x3,%ecx
  jle    L256
  addl   $0x1,0x10(%rsp)
  mov    0x10(%rsp),%eax
  mov    %eax,0x74(%rsp)
  cmp    $0x3,%eax
  jle    L2
  mov    0x20(%rsp),%ecx
  add    $0x1,%ecx
  mov    %ecx,0x54(%rsp)
  cmp    $0x4,%ecx
  jle    L52
  mov    0x1c(%rsp),%ecx
  add    $0x1,%ecx
  mov    %ecx,0x34(%rsp)
  cmp    $0x3,%ecx
  jle    L244
  addl   $0x1,0xc(%rsp)
  mov    0xc(%rsp),%eax
  mov    %eax,0x70(%rsp)
  cmp    $0x3,%eax
  jle    L225
  mov    0x18(%rsp),%r11d
  add    $0x1,%r11d
  mov    %r11d,0x50(%rsp)
  cmp    $0x4,%r11d
  jle    L44
  mov    0x14(%rsp),%r11d
  add    $0x1,%r11d
  mov    %r11d,0x30(%rsp)
  cmp    $0x3,%r11d
  jle    L172
  mov    0x98(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L203
  add    $0xa8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L203:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main() {
  int start[7], len[7], stride[7];
  for (start[0] = 0; start[0] < 4; start[0]++) {
    for (len[0] = 2; len[0] <= 4; len[0]++) {
      for (stride[0] = 1; stride[0] < 4; stride[0]++) {
        for (start[1] = 0; start[1] < 4; start[1]++) {
          for (len[1] = 2; len[1] <= 4; len[1]++) {
            for (stride[1] = 1; stride[1] < 4; stride[1]++) {
              for (start[2] = 0; start[2] < 4; start[2]++) {
                for (len[2] = 2; len[2] <= 4; len[2]++) {
                  for (stride[2] = 1; stride[2] < 4; stride[2]++) {
                    for (start[3] = 0; start[3] < 4; start[3]++) {
                      for (len[3] = 2; len[3] <= 4; len[3]++) {
                        for (stride[3] = 1; stride[3] < 4; stride[3]++) {
                          for (start[4] = 0; start[4] < 4; start[4]++) {
                            for (len[4] = 2; len[4] <= 4; len[4]++) {
                              for (stride[4] = 1; stride[4] < 4; stride[4]++) {
                                for (start[5] = 0; start[5] < 4; start[5]++) {
                                  for (len[5] = 2; len[5] <= 4; len[5]++) {
                                    for (stride[5] = 1; stride[5] < 4; stride[5]++) {
                                      for (start[6] = 0; start[6] < 4; start[6]++) {
                                        for (len[6] = 2; len[6] <= 4; len[6]++) {
                                          for (stride[6] = 1; stride[6] < 4; stride[6]++) {
                                            if ((start[0] + (len[0] - 1) * stride[0] < 4) && (start[1] + (len[1] - 1) * stride[1] < 4) && (start[2] + (len[2] - 1) * stride[2] < 4) && (start[3] + (len[3] - 1) * stride[3] < 4) && (start[4] + (len[4] - 1) * stride[4] < 4) && (start[5] + (len[5] - 1) * stride[5] < 4) && (start[6] + (len[6] - 1) * stride[6] < 4)) {
                                              test(start, len, stride);
                                            }
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
  return 0;
}
```