user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    D17(%rip),%rdi
  call   <printf@plt>
  lea    0xf(%rsp),%rsi
  lea    D48(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  lea    D7(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x10(%rsp),%rsi
  lea    D116(%rip),%rbx
  mov    %rbx,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  lea    D90(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x14(%rsp),%rsi
  mov    %rbx,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  movzbl 0xf(%rsp),%eax
  mov    %eax,%edx
  and    $0xffffffdf,%edx
  cmp    $0x41,%dl
  je     L13
  movsbq %al,%rax
  lea    D43(%rip),%rdx
  cmp    %rdx,%rax
  je     L70
  lea    D68(%rip),%rdx
  cmp    %rdx,%rax
  je     L70
  lea    D1(%rip),%rdx
  cmp    %rdx,%rax
  je     L5
  lea    D54(%rip),%rdx
  cmp    %rdx,%rax
  je     L5
  lea    D148(%rip),%rdx
  cmp    %rdx,%rax
  je     L73
  lea    D31(%rip),%rdx
  cmp    %rdx,%rax
  je     L73
  lea    D44(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L24
L13:
  movss  0x10(%rsp),%xmm0
  movss  0x14(%rsp),%xmm1
  movaps %xmm0,%xmm2
  addss  %xmm1,%xmm2
  cvtss2sd %xmm0,%xmm0
  cvtss2sd %xmm2,%xmm2
  cvtss2sd %xmm1,%xmm1
  lea    D130(%rip),%rdi
  mov    $0x3,%eax
  call   <printf@plt>
L24:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L35
  mov    $0x0,%eax
  add    $0x20,%rsp
  pop    %rbx
  ret
L70:
  movss  0x10(%rsp),%xmm0
  movss  0x14(%rsp),%xmm1
  movaps %xmm0,%xmm2
  subss  %xmm1,%xmm2
  cvtss2sd %xmm0,%xmm0
  cvtss2sd %xmm2,%xmm2
  cvtss2sd %xmm1,%xmm1
  lea    D112(%rip),%rdi
  mov    $0x3,%eax
  call   <printf@plt>
  jmp    L24
L5:
  movss  0x10(%rsp),%xmm0
  movss  0x14(%rsp),%xmm1
  movaps %xmm0,%xmm2
  mulss  %xmm1,%xmm2
  cvtss2sd %xmm0,%xmm0
  cvtss2sd %xmm2,%xmm2
  cvtss2sd %xmm1,%xmm1
  lea    D112(%rip),%rdi
  mov    $0x3,%eax
  call   <printf@plt>
  jmp    L24
L73:
  movss  0x10(%rsp),%xmm0
  movss  0x14(%rsp),%xmm1
  movaps %xmm0,%xmm2
  divss  %xmm1,%xmm2
  cvtss2sd %xmm0,%xmm0
  cvtss2sd %xmm2,%xmm2
  cvtss2sd %xmm1,%xmm1
  lea    D49(%rip),%rdi
  mov    $0x3,%eax
  call   <printf@plt>
  jmp    L24
L35:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D17
type_infered: string
name: read_data
arguments: data_tag: D48
type_infered: string
name: read_data
arguments: data_tag: D7
type_infered: string
name: read_data
arguments: data_tag: D116
type_infered: string
name: read_data
arguments: data_tag: D90
type_infered: string
name: read_data
arguments: data_tag: D43
type_infered: string
name: read_data
arguments: data_tag: D68
type_infered: string
name: read_data
arguments: data_tag: D1
type_infered: string
name: read_data
arguments: data_tag: D54
type_infered: string
name: read_data
arguments: data_tag: D148
type_infered: string
name: read_data
arguments: data_tag: D31
type_infered: string
name: read_data
arguments: data_tag: D44
type_infered: string
name: read_data
arguments: data_tag: D130
type_infered: string
name: read_data
arguments: data_tag: D112
type_infered: string
name: read_data
arguments: data_tag: D49
type_infered: string

tool: D17: What operation do you want to do?
	A) Addition
	B) Subtraction
	C) Multiplication
	D) Division

tool: D48: %c

tool: D7: Please enter a number: 

tool: D116: %f

tool: D90: Please enter another number: 

tool: D43: b

tool: D68: B

tool: D1: c

tool: D54: C

tool: D148: d

tool: D31: D

tool: D44: Sorry, that's an invalid character.

tool: D130: The sum of %.2f and %.2f is %.2f.


tool: D112: The difference of %.2f and %.2f is %.2f.


tool: D49: The quotient of %.2f and %.2f is %.2f.


assistant: ```c
int main() {
  char letter;
  float num1, num2;
  printf("What operation do you want to do?\n\tA) Addition\n\tB) Subtraction\n\tC) Multiplication\n\tD) Division");
  scanf("%c", &letter);
  printf("Please enter a number: ");
  scanf("%f", &num1);
  printf("Please enter another number: ");
  scanf("%f", &num2);
  if (letter == 'A' || letter == 'a') {
    printf("The sum of %.2f and %.2f is %.2f.\n", num1, num2, num1 + num2);
  } else if (letter == "B" || letter == "b") {
    printf("The difference of %.2f and %.2f is %.2f.\n", num1, num2, num1 - num2);
  } else if (letter == "C" || letter == "c") {
    printf("The difference of %.2f and %.2f is %.2f.\n", num1, num2, num1 * num2);
  } else if (letter == "D" || letter == "d") {
    printf("The quotient of %.2f and %.2f is %.2f.\n", num1, num2, num1 / num2);
  } else {
    printf("Sorry, that's an invalid character.");
  }
  return 0;
}
```