user: What would the C source look like for the assembly code provided here:

```asm
<main>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  movb   $0x0,0x7(%rsp)
  lea    D26(%rip),%rdi
  call   <printf@plt>
  lea    0x7(%rsp),%rsi
  lea    D36(%rip),%rdi
  call   <scanf@plt>
  movsbl 0x7(%rsp),%esi
  lea    D83(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movsbl 0x7(%rsp),%esi
  add    $0x1,%esi
  lea    D38(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D71(%rip),%rdi
  call   <puts@plt>
  movzbl 0x7(%rsp),%edi
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  jbe    L14
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  ja     L6
  movsbl %dil,%edi
  call   <makeUpperCase@plt>
  mov    %al,0x7(%rsp)
L29:
  lea    D6(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D30(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movsbl 0x7(%rsp),%esi
  lea    D75(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L22
  mov    $0x0,%eax
  add    $0x18,%rsp
  ret
L14:
  lea    0x7(%rsp),%rdi
  call   <makeLowerCase@plt>
  jmp    L29
L6:
  lea    D61(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L29
L22:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D26
type_infered: string
name: disassemble_data
arguments: data_label: D36
type_infered: string
name: disassemble_data
arguments: data_label: D83
type_infered: string
name: disassemble_data
arguments: data_label: D38
type_infered: string
name: disassemble_data
arguments: data_label: D71
type_infered: string
name: disassemble_data
arguments: data_label: D6
type_infered: string
name: disassemble_data
arguments: data_label: D30
type_infered: string
name: disassemble_data
arguments: data_label: D75
type_infered: string
name: disassemble_data
arguments: data_label: D61
type_infered: string

tool: D26: 
Enter Single Character: 

tool: D36: %c

tool: D83: 
You entered character: %c

tool: D38: 
Character + 1 = %c

tool: D71: 

Generating upper or lower case version....

tool: D6: 
Upper-to-Lower Case Conversation used a pointer.

tool: D30: 
Lower-to-Upper Case Conversation used a returned value.

tool: D75: 
Returned character value of function (should the altered version): %c


tool: D61: 
Unable to make character  Please try again.

assistant: ```c
int main() {
  char stephenCharacter = '\0';
  printf("\nEnter Single Character: ");
  scanf("%c", &stephenCharacter);
  printf("\nYou entered character: %c", stephenCharacter);
  printf("\nCharacter + 1 = %c", stephenCharacter + 1);
  printf("\n\nGenerating upper or lower case version....\n");
  if (stephenCharacter >= 65 && stephenCharacter <= 90)
    makeLowerCase(&stephenCharacter);
  else if (stephenCharacter >= 97 && stephenCharacter <= 122)
    stephenCharacter = makeUpperCase(stephenCharacter);
  else
    printf("\nUnable to make character  Please try again.");
  printf("\nUpper-to-Lower Case Conversation used a pointer.");
  printf("\nLower-to-Upper Case Conversation used a returned value.");
  printf("\nReturned character value of function (should the altered version): %c\n", stephenCharacter);
  return 0;
}
```