user: Translate the below assembly code into C programming language:

```asm
<printgraph>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %edi,0x1c(%rsp)
  movsbl %dil,%ecx
  mov    %ecx,0x14(%rsp)
  lea    -0x40(%rcx),%edx
  mov    %edx,0x18(%rsp)
  test   %edx,%edx
  jle    L182
  lea    -0x82(%rcx,%rcx,1),%r14d
  mov    %r14d,%r13d
  mov    %edx,%esi
  lea    0x3f(%rsi,%rsi,1),%esi
  mov    %sil,0xf(%rsp)
  mov    %edx,0x10(%rsp)
  mov    $0x0,%ebp
  lea    -0x1(%rdx,%rdx,1),%r12d
  jmp    L262
L201:
  mov    $0x41,%edi
  call   <putchar@plt>
L104:
  add    $0x1,%ebx
  cmp    %r12d,%ebx
  je     L155
L48:
  test   %ebp,%ebp
  je     L201
  test   %ebx,%ebx
  je     L201
  cmp    %ebx,%r13d
  je     L201
  cmp    %ebx,%ebp
  jge    L150
  cmp    %r14d,%ebx
  jge    L14
  movsbl %r15b,%edi
  call   <putchar@plt>
  jmp    L104
L150:
  lea    0x41(%rbx),%edi
  movsbl %dil,%edi
  call   <putchar@plt>
  jmp    L104
L14:
  movzbl 0xf(%rsp),%edi
  sub    %ebx,%edi
  movsbl %dil,%edi
  call   <putchar@plt>
  jmp    L104
L155:
  mov    $0xa,%edi
  call   <putchar@plt>
  add    $0x1,%ebp
  sub    $0x1,%r14d
  cmp    0x10(%rsp),%ebp
  je     L182
L262:
  mov    $0x0,%ebx
  lea    0x41(%rbp),%r15d
  jmp    L48
L182:
  mov    0x14(%rsp),%ebp
  sub    $0x42,%ebp
  js     L135
  mov    0x18(%rsp),%ecx
  lea    (%rcx,%rcx,1),%esi
  mov    %esi,0x10(%rsp)
  movsbl 0x1c(%rsp),%eax
  lea    -0x82(%rax,%rax,1),%r13d
  lea    0x3f(%rcx,%rcx,1),%ecx
  mov    %cl,0xf(%rsp)
  lea    -0x40(%rax),%r14d
  lea    -0x1(%rsi),%r12d
  jmp    L159
L27:
  mov    $0x41,%edi
  call   <putchar@plt>
L145:
  add    $0x1,%ebx
  cmp    %ebx,%r12d
  je     L143
L112:
  test   %ebp,%ebp
  je     L27
  test   %ebx,%ebx
  je     L27
  cmp    %ebx,%r13d
  je     L27
  cmp    %ebx,%ebp
  jge    L257
  cmp    %r14d,%ebx
  jge    L228
  movsbl %r15b,%edi
  call   <putchar@plt>
  jmp    L145
L257:
  lea    0x41(%rbx),%edi
  movsbl %dil,%edi
  call   <putchar@plt>
  jmp    L145
L228:
  movzbl 0xf(%rsp),%edi
  sub    %ebx,%edi
  movsbl %dil,%edi
  call   <putchar@plt>
  jmp    L145
L143:
  mov    $0xa,%edi
  call   <putchar@plt>
  sub    $0x1,%ebp
  add    $0x1,%r14d
  cmp    $0xffffffff,%ebp
  je     L135
L159:
  mov    $0x0,%ebx
  lea    0x41(%rbp),%r15d
  cmpl   $0x1,0x10(%rsp)
  jg     L112
  jmp    L143
L135:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void printgraph(char ch) {
  int i, j;
  int n = ch - 'A' + 1;
  for (i = 0; i < n; i++) {
    for (j = 0; j < 2 * n - 1; j++) {
      if (i == 0 || j == 0 || j == 2 * n - 2)
        putchar('A');
      else {
        if (j <= i)
          putchar('A' + j);
        else if (j > i && j < 2 * n - 2 - i)
          putchar('A' + i);
        else
          putchar('A' + 2 * n - 2 - j);
      }
    }
    putchar('\n');
  }
  for (i = n - 2; i >= 0; i--) {
    for (j = 0; j < 2 * n - 1; j++) {
      if (i == 0 || j == 0 || j == 2 * n - 2)
        putchar('A');
      else {
        if (j <= i)
          putchar('A' + j);
        else if (j > i && j < 2 * n - 2 - i)
          putchar('A' + i);
        else
          putchar('A' + 2 * n - 2 - j);
      }
    }
    putchar('\n');
  }
}
```