user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    D89(%rip),%rsi
  lea    D83(%rip),%rdi
  call   <printf@plt>
  lea    0x4(%rsp),%rsi
  lea    D38(%rip),%rdi
  call   <scanf@plt>
  lea    D40(%rip),%r13
  lea    D89(%rip),%r12
  lea    D83(%rip),%rbp
  lea    D38(%rip),%rbx
  jmp    L71
L86:
  movslq %eax,%rsi
  imul   $0x68db8bad,%rsi,%rsi
  sar    $0x2c,%rsi
  cltd
  sub    %edx,%esi
  imul   $0x2710,%esi,%edx
  mov    %eax,%esi
  sub    %edx,%esi
  movslq %esi,%r8
  imul   $0x10624dd3,%r8,%r8
  sar    $0x26,%r8
  mov    %esi,%edx
  sar    $0x1f,%edx
  sub    %edx,%r8d
  imul   $0x3e8,%r8d,%edx
  mov    %esi,%r8d
  sub    %edx,%r8d
  movslq %r8d,%rdx
  imul   $0x51eb851f,%rdx,%rdx
  sar    $0x25,%rdx
  mov    %r8d,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x64,%edx,%ecx
  mov    %r8d,%edx
  sub    %ecx,%edx
  movslq %edx,%rcx
  imul   $0x66666667,%rcx,%rcx
  sar    $0x22,%rcx
  mov    %edx,%edi
  sar    $0x1f,%edi
  sub    %edi,%ecx
  lea    (%rcx,%rcx,4),%edi
  add    %edi,%edi
  mov    %edx,%ecx
  sub    %edi,%ecx
  mov    %ecx,0x4(%rsp)
  sub    $0x11170,%eax
  cmp    $0x270f,%eax
  setbe  %dil
  movzbl %dil,%edi
  sub    $0x1b58,%esi
  cmp    $0x3e8,%esi
  adc    $0x0,%edi
  lea    -0x2bc(%r8),%eax
  cmp    $0x64,%eax
  adc    $0x0,%edi
  sub    $0x46,%edx
  cmp    $0x9,%edx
  ja     L73
  add    $0x1,%edi
  cmp    $0x7,%ecx
  jne    L37
L58:
  add    $0x1,%edi
L37:
  mov    %edi,%edx
  lea    D16(%rip),%rsi
  lea    D60(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L45:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L87
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L73:
  cmp    $0x7,%ecx
  je     L58
  test   %edi,%edi
  jg     L37
  lea    D20(%rip),%rsi
  lea    D83(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L45
L53:
  mov    %r13,%rdi
  call   <puts@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x4(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
L71:
  mov    0x4(%rsp),%eax
  test   %eax,%eax
  js     L53
  cmp    $0x1869f,%eax
  jle    L86
  mov    %r13,%rdi
  call   <puts@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x4(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  jmp    L71
L87:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D89
datatype: string
name: unpack_data
arguments: tag: D83
datatype: string
name: unpack_data
arguments: tag: D38
datatype: string
name: unpack_data
arguments: tag: D40
datatype: string
name: unpack_data
arguments: tag: D16
datatype: string
name: unpack_data
arguments: tag: D60
datatype: string
name: unpack_data
arguments: tag: D20
datatype: string

tool: D89: Enter a valid number (up to 5 digits): 

tool: D83: %s

tool: D38: %d

tool: D40: You have not entered a valid number

tool: D16: The sevens found are: 

tool: D60: %s%d

tool: D20: No sevens where found!!!

assistant: ```c
int main(void) {
  int number;
  int flag = 1;
  int numA;
  int numB;
  int numC;
  int numD;
  int numE;
  int counter = 0;
  printf("%s", "Enter a valid number (up to 5 digits): ");
  scanf("%d", &number);
  while (flag != -1) {
    if (number >= 0) {
      if (number <= 99999) {
        numA = number / 10000;
        number = number % 10000;
        numB = number / 1000;
        number = number % 1000;
        numC = number / 100;
        number = number % 100;
        numD = number / 10;
        number = number % 10;
        numE = number;
        if (numA == 7) {
          counter++;
        }
        if (numB == 7) {
          counter++;
        }
        if (numC == 7) {
          counter++;
        }
        if (numD == 7) {
          counter++;
        }
        if (numE == 7) {
          counter++;
        }
        flag = -1;
      } else {
        puts("You have not entered a valid number");
        printf("%s", "Enter a valid number (up to 5 digits): ");
        scanf("%d", &number);
        flag = 1;
      }
    } else {
      puts("You have not entered a valid number");
      printf("%s", "Enter a valid number (up to 5 digits): ");
      scanf("%d", &number);
      flag = 1;
    }
  }
  if (counter > 0) {
    printf("%s%d", "The sevens found are: ", counter);
  } else {
    printf("%s", "No sevens where found!!!");
  }
  return 0;
}
```