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

```asm
<main>:
  endbr64
  push   %r15
  lea    D46(%rip),%rdi
  push   %r14
  lea    D84(%rip),%r14
  push   %r13
  push   %r12
  lea    D87(%rip),%r12
  push   %rbp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rsp,%rsi
  mov    %r12,%rdi
  call   <scanf@plt>
  mov    (%rsp),%eax
  lea    0x0(,%rax,4),%edi
  call   <malloc@plt>
  mov    (%rsp),%edx
  mov    %rax,%r13
  mov    %rax,%rbp
  test   %edx,%edx
  jle    L114
  nopl   (%rax)
L19:
  add    $0x1,%ebx
  mov    %r14,%rdi
  xor    %eax,%eax
  mov    %ebx,%esi
  call   <printf@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  add    $0x4,%rbp
  call   <scanf@plt>
  cmp    (%rsp),%ebx
  jl     L19
L114:
  lea    D60(%rip),%rdi
  xor    %eax,%eax
  xor    %ebx,%ebx
  call   <printf@plt>
  lea    0x4(%rsp),%rsi
  mov    %r12,%rdi
  lea    D48(%rip),%r14
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  lea    0x0(,%rax,4),%edi
  call   <malloc@plt>
  mov    %rax,%r15
  mov    0x4(%rsp),%eax
  mov    %r15,%rbp
  test   %eax,%eax
  jle    L77
  nopl   (%rax)
L34:
  add    $0x1,%ebx
  mov    %r14,%rdi
  xor    %eax,%eax
  mov    %ebx,%esi
  call   <printf@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  add    $0x4,%rbp
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  cmp    %eax,%ebx
  jl     L34
L77:
  mov    (%rsp),%edx
  lea    (%rdx,%rax,1),%esi
  shl    $0x2,%esi
  cmp    %eax,%edx
  jle    L0
  mov    %r13,%rdi
  call   <realloc@plt>
  mov    %r15,%rcx
  mov    %rax,%rbx
  xor    %eax,%eax
  cmpl   $0x0,0x4(%rsp)
  jle    L63
  xchg   %ax,%ax
L47:
  mov    (%rsp),%edx
  mov    (%rcx),%esi
  add    $0x4,%rcx
  add    %eax,%edx
  add    $0x1,%eax
  movslq %edx,%rdx
  mov    %esi,(%rbx,%rdx,4)
  cmp    %eax,0x4(%rsp)
  jg     L47
L63:
  mov    %r15,%rdi
  xor    %r12d,%r12d
  lea    D11(%rip),%rbp
  call   <free@plt>
  lea    D14(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x4(%rsp),%eax
  add    (%rsp),%eax
  test   %eax,%eax
  jle    L88
  nopl   (%rax)
L128:
  mov    (%rbx),%esi
  mov    %rbp,%rdi
  xor    %eax,%eax
  add    $0x1,%r12d
  add    $0x4,%rbx
  call   <printf@plt>
  mov    (%rsp),%eax
  add    0x4(%rsp),%eax
  cmp    %r12d,%eax
  jg     L128
L88:
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L39
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L0:
  mov    %r15,%rdi
  call   <realloc@plt>
  mov    %r13,%rcx
  mov    %rax,%rbx
  xor    %eax,%eax
  cmpl   $0x0,(%rsp)
  jle    L15
  nopl   (%rax)
L53:
  mov    0x4(%rsp),%edx
  mov    (%rcx),%esi
  add    $0x4,%rcx
  add    %eax,%edx
  add    $0x1,%eax
  movslq %edx,%rdx
  mov    %esi,(%rbx,%rdx,4)
  cmp    %eax,(%rsp)
  jg     L53
L15:
  mov    %r13,%rdi
  xor    %r12d,%r12d
  lea    D11(%rip),%rbp
  call   <free@plt>
  lea    D14(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x4(%rsp),%eax
  add    (%rsp),%eax
  test   %eax,%eax
  jle    L88
  nopl   0x0(%rax)
L31:
  mov    (%rbx),%esi
  mov    %rbp,%rdi
  xor    %eax,%eax
  add    $0x1,%r12d
  add    $0x4,%rbx
  call   <printf@plt>
  mov    (%rsp),%eax
  add    0x4(%rsp),%eax
  cmp    %r12d,%eax
  jg     L31
  jmp    L88
L39:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D46
type_guessed: string
name: unpack_data
arguments: label: D84
type_guessed: string
name: unpack_data
arguments: label: D87
type_guessed: string
name: unpack_data
arguments: label: D60
type_guessed: string
name: unpack_data
arguments: label: D48
type_guessed: string
name: unpack_data
arguments: label: D11
type_guessed: string
name: unpack_data
arguments: label: D14
type_guessed: string

tool: D46: Dati lungimea vectorului a: 

tool: D84: 	 a[%d]=

tool: D87: %d

tool: D60: Dati lungimea vectorului b: 

tool: D48: 	 b[%d]=

tool: D11: %4d

tool: D14: Noul vector: 

assistant: ```c
int main() {
  int *a, *b;
  int n, m, i;
  printf("Dati lungimea vectorului a: ");
  scanf("%d", &n);
  a = (int *)malloc(n * sizeof(int));
  for (i = 0; i < n; i++) {
    printf("\t a[%d]=", i + 1);
    scanf("%d", &a[i]);
  }
  printf("Dati lungimea vectorului b: ");
  scanf("%d", &m);
  b = (int *)malloc(m * sizeof(int));
  for (i = 0; i < m; i++) {
    printf("\t b[%d]=", i + 1);
    scanf("%d", &b[i]);
  }
  if (n > m) {
    a = (int *)realloc(a, (n + m) * sizeof(int));
    for (i = 0; i < m; i++) {
      a[i + n] = b[i];
    }
    free(b);
    printf("Noul vector: ");
    for (i = 0; i < (m + n); i++) {
      printf("%4d", a[i]);
    }
  } else {
    b = (int *)realloc(b, (n + m) * sizeof(int));
    for (i = 0; i < n; i++) {
      b[i + m] = a[i];
    }
    free(a);
    printf("Noul vector: ");
    for (i = 0; i < (m + n); i++) {
      printf("%4d", b[i]);
    }
  }
  printf("\n");
  return 0;
}
```