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

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  sub    $0x18,%rsp
  movl   $0x0,0xc(%rsp)
L67:
  mov    0xc(%rsp),%esi
  lea    D40(%rip),%rdi
  xor    %eax,%eax
  lea    0x400000(%rbp),%r14d
  call   <printf@plt>
  lea    D26(%rip),%rdi
  call   <puts@plt>
  mov    $0x2000000,%edi
  call   <malloc@plt>
  mov    %rax,%r15
  mov    %rax,%rbx
  mov    %rax,%r13
  nopl   0x0(%rax)
L55:
  mov    $0x1,%edi
  mov    %ebp,%r12d
  add    $0x1,%ebp
  call   <malloc@plt>
  mov    %rax,0x0(%r13)
  test   %rax,%rax
  je     L71
  add    $0x8,%r13
  cmp    %r14d,%ebp
  jne    L55
  lea    0x2000000(%r15),%r14
  nopl   (%rax)
L15:
  mov    (%rbx),%rdi
  add    $0x8,%rbx
  call   <free@plt>
  cmp    %r14,%rbx
  jne    L15
  mov    %r15,%rdi
  add    $0x200001,%r12d
  call   <free@plt>
  lea    D8(%rip),%rdi
  call   <puts@plt>
  mov    $0x1000000,%edi
  call   <malloc@plt>
  mov    %rax,%r14
  mov    %rax,%rbx
  mov    %rax,%r13
  nopw   0x0(%rax,%rax,1)
L103:
  mov    $0x4,%edi
  mov    %ebp,%r15d
  add    $0x1,%ebp
  call   <malloc@plt>
  mov    %rax,0x0(%r13)
  test   %rax,%rax
  je     L71
  add    $0x8,%r13
  cmp    %r12d,%ebp
  jne    L103
  lea    0x1000000(%r14),%r12
  nopl   (%rax)
L107:
  mov    (%rbx),%rdi
  add    $0x8,%rbx
  call   <free@plt>
  cmp    %rbx,%r12
  jne    L107
  mov    %r14,%rdi
  add    $0x100001,%r15d
  call   <free@plt>
  lea    D34(%rip),%rdi
  call   <puts@plt>
  mov    $0x800000,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  mov    %rax,%rbx
  mov    %rax,%r14
  nop
L41:
  xor    %eax,%eax
  add    $0x1,%ebp
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x66666667,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x21,%rdx
  sub    %ecx,%edx
  lea    (%rdx,%rdx,4),%edx
  sub    %edx,%eax
  lea    0x1(%rax),%edi
  movslq %edi,%rdi
  call   <malloc@plt>
  mov    %rax,(%r14)
  test   %rax,%rax
  je     L71
  add    $0x8,%r14
  cmp    %ebp,%r15d
  jne    L41
  lea    0x800000(%r12),%r14
  nopl   0x0(%rax,%rax,1)
L101:
  mov    (%rbx),%rdi
  add    $0x8,%rbx
  call   <free@plt>
  cmp    %rbx,%r14
  jne    L101
  mov    %r12,%rdi
  call   <free@plt>
  addl   $0x1,0xc(%rsp)
  mov    0xc(%rsp),%eax
  cmp    $0x5,%eax
  jne    L67
  lea    D57(%rip),%rdi
  call   <puts@plt>
  xor    %eax,%eax
L93:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L71:
  mov    %ebp,%esi
  lea    D51(%rip),%rdi
  call   <printf@plt>
  or     $0xffffffff,%eax
  jmp    L93
```

tool_calls: name: retrieve_data
arguments: data_tag: D40
datatype: string
name: retrieve_data
arguments: data_tag: D26
datatype: string
name: retrieve_data
arguments: data_tag: D8
datatype: string
name: retrieve_data
arguments: data_tag: D34
datatype: string
name: retrieve_data
arguments: data_tag: D57
datatype: string
name: retrieve_data
arguments: data_tag: D51
datatype: string

tool: D40: Round %d


tool: D26: Allocating 4M chars...

tool: D8: Allocating 2M ints...

tool: D34: Allocating 1M random sizes...

tool: D57: Leave 16M residue behind

tool: D51: Failed after %d iterations


assistant: ```c
int main() {
  int rounds;
  int counter = 0;
  for (rounds = 0; rounds < 5; rounds++) {
    int i;
    printf("Round %d\n", rounds);
    printf("Allocating 4M chars...\n");
    char **x = (char **)malloc(4 * 1024 * 1024 * sizeof(char *));
    for (i = 0; i < 4 * 1024 * 1024; i++) {
      x[i] = (char *)malloc(1);
      counter++;
      if (!x[i]) {
        printf("Failed after %d iterations\n", counter);
        return -1;
      }
    }
    for (i = 0; i < 4 * 1024 * 1024; i++) {
      free(x[i]);
    }
    free(x);
    printf("Allocating 2M ints...\n");
    int **y = (int **)malloc(2 * 1024 * 1024 * sizeof(char *));
    for (i = 0; i < 2 * 1024 * 1024; i++) {
      y[i] = (int *)malloc(sizeof(int));
      counter++;
      if (!y[i]) {
        printf("Failed after %d iterations\n", counter);
        return -1;
      }
    }
    for (i = 0; i < 2 * 1024 * 1024; i++) {
      free(y[i]);
    }
    free(y);
    printf("Allocating 1M random sizes...\n");
    char **z = (char **)malloc(1024 * 1024 * sizeof(char *));
    for (i = 0; i < 1024 * 1024; i++) {
      z[i] = (char *)malloc(sizeof(char) * (rand() % 5) + 1);
      counter++;
      if (!z[i]) {
        printf("Failed after %d iterations\n", counter);
        return -1;
      }
    }
    for (i = 0; i < 1024 * 1024; i++) {
      free(z[i]);
    }
    free(z);
  }
  printf("Leave 16M residue behind\n");
  char *bla = malloc(16 * 1024 * 1024);
  *bla = 1;
  return 0;
}
```