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

```asm
<merge>:
  endbr64
  push   %r15
  lea    D33(%rip),%r15
  push   %r14
  push   %r13
  mov    %esi,%r13d
  push   %r12
  mov    %rdi,%r12
  lea    D3(%rip),%rdi
  push   %rbp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x238,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x228(%rsp)
  xor    %eax,%eax
  lea    0x20(%rsp),%r14
  call   <printf@plt>
  lea    0x1c(%rsp),%rsi
  lea    D32(%rip),%rdi
  mov    %r14,%rbp
  call   <scanf@plt>
  lea    D25(%rip),%rdi
  call   <printf@plt>
  mov    0x1c(%rsp),%eax
  test   %eax,%eax
  jle    L90
L119:
  mov    %rbp,%rsi
  mov    %r15,%rdi
  add    $0x1,%ebx
  add    $0x4,%rbp
  call   <scanf@plt>
  cmp    %ebx,0x1c(%rsp)
  jg     L119
L90:
  mov    %r13d,%esi
  mov    %r12,%rdi
  call   <sort@plt>
  mov    0x1c(%rsp),%esi
  mov    %r14,%rdi
  call   <sort@plt>
  test   %r13d,%r13d
  jle    L148
  mov    0x1c(%rsp),%ecx
  xor    %ebp,%ebp
  xor    %ebx,%ebx
  xor    %r15d,%r15d
  jmp    L133
  nopl   (%rax)
L160:
  movslq %r15d,%rax
  movslq %ebx,%rdx
  lea    0x0(,%rax,4),%rsi
  mov    0x20(%rsp,%rdx,4),%edx
  mov    (%r12,%rax,4),%eax
  cmp    %edx,%eax
  jge    L78
  movslq %ebp,%rdi
  add    $0x1,%r15d
  add    $0x1,%ebp
  mov    %eax,0x90(%rsp,%rdi,4)
  mov    0x4(%r12,%rsi,1),%eax
L78:
  cmp    %eax,%edx
  jge    L104
  movslq %ebp,%rax
  add    $0x1,%ebx
  add    $0x1,%ebp
  mov    %edx,0x90(%rsp,%rax,4)
L104:
  cmp    %r13d,%r15d
  jge    L151
L133:
  cmp    %ebx,%ecx
  jg     L160
L151:
  cmp    %r13d,%r15d
  jg     L124
L187:
  mov    %r13d,%r9d
  lea    0x90(%rsp),%r8
  movslq %ebp,%rax
  mov    %ecx,0xc(%rsp)
  sub    %r15d,%r9d
  lea    (%r8,%rax,4),%rdi
  cmp    %r15d,%r13d
  mov    %r8,(%rsp)
  mov    %r9d,%eax
  mov    %r9d,0x8(%rsp)
  lea    0x4(,%rax,4),%rdx
  mov    $0x4,%eax
  cmovl  %rax,%rdx
  movslq %r15d,%rax
  lea    (%r12,%rax,4),%rsi
  call   <memcpy@plt>
  mov    0x8(%rsp),%r9d
  xor    %eax,%eax
  cmp    %r15d,%r13d
  mov    0xc(%rsp),%ecx
  mov    (%rsp),%r8
  cmovge %r9d,%eax
  mov    %eax,%r13d
  lea    0x1(%rbp,%rax,1),%r15d
  add    %ebp,%r13d
  cmp    %ecx,%ebx
  jg     L49
L16:
  mov    %ecx,%ebp
  movslq %r15d,%rax
  mov    %r8,(%rsp)
  sub    %ebx,%ebp
  lea    (%r8,%rax,4),%rdi
  cmp    %ecx,%ebx
  mov    %ecx,0x8(%rsp)
  mov    %ebp,%eax
  lea    0x4(,%rax,4),%rdx
  mov    $0x4,%eax
  cmovg  %rax,%rdx
  movslq %ebx,%rax
  lea    (%r14,%rax,4),%rsi
  call   <memcpy@plt>
  mov    0x8(%rsp),%ecx
  xor    %eax,%eax
  mov    (%rsp),%r8
  cmp    %ecx,%ebx
  cmovle %ebp,%eax
  lea    (%r15,%rax,1),%r13d
  lea    0x1(%r15,%rax,1),%ebp
  mov    %r13d,%eax
L77:
  lea    0x4(,%rax,4),%rdx
  test   %ebp,%ebp
  mov    %r8,%rsi
  mov    %r12,%rdi
  mov    $0x4,%eax
  cmovle %rax,%rdx
  call   <memcpy@plt>
L2:
  mov    0x228(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L143
  add    $0x238,%rsp
  mov    %r13d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L124:
  cmp    %ebx,%ecx
  jge    L45
  lea    -0x1(%rbp),%eax
  mov    %eax,%r13d
  test   %ebp,%ebp
  je     L2
  lea    0x90(%rsp),%r8
  jmp    L77
L148:
  mov    0x1c(%rsp),%ecx
  mov    $0x0,%ebx
  mov    $0x0,%ebp
  mov    $0x0,%r15d
  je     L187
  lea    0x90(%rsp),%r8
  or     $0xffffffff,%r13d
  test   %ecx,%ecx
  jns    L16
  jmp    L2
L45:
  mov    %ebp,%r15d
  lea    0x90(%rsp),%r8
  jmp    L16
L143:
  call   <__stack_chk_fail@plt>
L49:
  mov    %r15d,%ebp
  lea    -0x1(%r15),%eax
  jmp    L77
```

tool_calls: name: unpack_data
arguments: data_label: D33
type: string
name: unpack_data
arguments: data_label: D3
type: string
name: unpack_data
arguments: data_label: D32
type: string
name: unpack_data
arguments: data_label: D25
type: string

tool: D33:  %d

tool: D3: 
Enter the length of array to be merged(<25):

tool: D32: %d

tool: D25: 
Enter the array:


assistant: ```c
int merge(int *a, int len) {
  int b[25], c[100], i = 0, j = 0, len1, k = 0, m;
  printf("\nEnter the length of array to be merged(<25):");
  scanf("%d", &len1);
  printf("\nEnter the array:\n");
  for (i = 0; i < len1; i++)
    scanf(" %d", &b[i]);
  sort(a, len);
  sort(b, len1);
  i = 0;
  while (i < len && j < len1) {
    if (a[i] < b[j])
      c[k++] = a[i++];
    if (a[i] > b[j])
      c[k++] = b[j++];
  }
  while (i <= len) {
    c[k++] = a[i++];
  }
  while (j <= len1) {
    c[k++] = b[j++];
  }
  for (m = 0; m < k; m++)
    a[m] = c[m];
  return k - 1;
}
```