user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  sub    $0x18,%rsp
  lea    D265(%rip),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x7(%rsp),%rsi
  call   <scanf@plt>
  movzbl 0x7(%rsp),%eax
  cmp    $0x61,%al
  je     L217
L264:
  cmp    $0x62,%al
  je     L369
L344:
  cmp    $0x63,%al
  je     L231
L205:
  cmp    $0x64,%al
  je     L164
L274:
  cmp    $0x65,%al
  je     L352
L397:
  cmp    $0x66,%al
  je     L293
L510:
  cmp    $0x67,%al
  je     L311
L336:
  cmp    $0x68,%al
  je     L127
L379:
  cmp    $0x69,%al
  je     L323
L252:
  cmp    $0x6a,%al
  je     L460
L290:
  cmp    $0x6b,%al
  je     L377
L417:
  cmp    $0x6c,%al
  je     L300
L129:
  cmp    $0x6d,%al
  je     L122
L401:
  cmp    $0x6e,%al
  je     L389
L449:
  cmp    $0x6f,%al
  je     L471
L434:
  cmp    $0x70,%al
  je     L9
L438:
  cmp    $0x71,%al
  je     L165
L373:
  cmp    $0x72,%al
  je     L45
L267:
  cmp    $0x73,%al
  je     L325
L294:
  cmp    $0x74,%al
  je     L309
L113:
  cmp    $0x75,%al
  je     L445
L286:
  cmp    $0x76,%al
  je     L23
L302:
  cmp    $0x77,%al
  je     L248
L292:
  cmp    $0x78,%al
  je     L79
L13:
  cmp    $0x79,%al
  je     L1
L222:
  cmp    $0x7a,%al
  je     L152
L280:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L64
  xor    %eax,%eax
  add    $0x18,%rsp
  ret
L217:
  lea    D98(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L264
L152:
  lea    D196(%rip),%rdi
  call   <printf@plt>
  jmp    L280
L1:
  lea    D146(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L222
L79:
  lea    D120(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L13
L248:
  lea    D23(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L292
L23:
  lea    D250(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L302
L445:
  lea    D134(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L286
L309:
  lea    D63(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L113
L325:
  lea    D27(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L294
L45:
  lea    D203(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L267
L165:
  lea    D200(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L373
L9:
  lea    D35(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L438
L471:
  lea    D56(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L434
L389:
  lea    D169(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L449
L122:
  lea    D167(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L401
L300:
  lea    D234(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L129
L377:
  lea    D209(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L417
L460:
  lea    D26(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L290
L323:
  lea    D188(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L252
L127:
  lea    D93(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L379
L311:
  lea    D3(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L336
L293:
  lea    D141(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L510
L352:
  lea    D249(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L397
L164:
  lea    D24(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L274
L231:
  lea    D218(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L205
L369:
  lea    D206(%rip),%rdi
  call   <printf@plt>
  movzbl 0x7(%rsp),%eax
  jmp    L344
L64:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D265
type_guessed: string
name: unpack_data
arguments: tag: D98
type_guessed: string
name: unpack_data
arguments: tag: D196
type_guessed: string
name: unpack_data
arguments: tag: D146
type_guessed: string
name: unpack_data
arguments: tag: D120
type_guessed: string
name: unpack_data
arguments: tag: D23
type_guessed: string
name: unpack_data
arguments: tag: D250
type_guessed: string
name: unpack_data
arguments: tag: D134
type_guessed: string
name: unpack_data
arguments: tag: D63
type_guessed: string
name: unpack_data
arguments: tag: D27
type_guessed: string
name: unpack_data
arguments: tag: D203
type_guessed: string
name: unpack_data
arguments: tag: D200
type_guessed: string
name: unpack_data
arguments: tag: D35
type_guessed: string
name: unpack_data
arguments: tag: D56
type_guessed: string
name: unpack_data
arguments: tag: D169
type_guessed: string
name: unpack_data
arguments: tag: D167
type_guessed: string
name: unpack_data
arguments: tag: D234
type_guessed: string
name: unpack_data
arguments: tag: D209
type_guessed: string
name: unpack_data
arguments: tag: D26
type_guessed: string
name: unpack_data
arguments: tag: D188
type_guessed: string
name: unpack_data
arguments: tag: D93
type_guessed: string
name: unpack_data
arguments: tag: D3
type_guessed: string
name: unpack_data
arguments: tag: D141
type_guessed: string
name: unpack_data
arguments: tag: D249
type_guessed: string
name: unpack_data
arguments: tag: D24
type_guessed: string
name: unpack_data
arguments: tag: D218
type_guessed: string
name: unpack_data
arguments: tag: D206
type_guessed: string

tool: D265: %c

tool: D98: z


tool: D196: a


tool: D146: b


tool: D120: c


tool: D23: d


tool: D250: e


tool: D134: f


tool: D63: g


tool: D27: h


tool: D203: i


tool: D200: j


tool: D35: k


tool: D56: l


tool: D169: m


tool: D167: n


tool: D234: o


tool: D209: p


tool: D26: q


tool: D188: r


tool: D93: s


tool: D3: t


tool: D141: u


tool: D249: v


tool: D24: w


tool: D218: x


tool: D206: y


assistant: ```c
int main() {
  char S;
  scanf("%c", &S);
  if (S == 97)
    printf("z\n");
  if (S == 98)
    printf("y\n");
  if (S == 99)
    printf("x\n");
  if (S == 100)
    printf("w\n");
  if (S == 101)
    printf("v\n");
  if (S == 102)
    printf("u\n");
  if (S == 103)
    printf("t\n");
  if (S == 104)
    printf("s\n");
  if (S == 105)
    printf("r\n");
  if (S == 106)
    printf("q\n");
  if (S == 107)
    printf("p\n");
  if (S == 108)
    printf("o\n");
  if (S == 109)
    printf("n\n");
  if (S == 110)
    printf("m\n");
  if (S == 111)
    printf("l\n");
  if (S == 112)
    printf("k\n");
  if (S == 113)
    printf("j\n");
  if (S == 114)
    printf("i\n");
  if (S == 115)
    printf("h\n");
  if (S == 116)
    printf("g\n");
  if (S == 117)
    printf("f\n");
  if (S == 118)
    printf("e\n");
  if (S == 119)
    printf("d\n");
  if (S == 120)
    printf("c\n");
  if (S == 121)
    printf("b\n");
  if (S == 122)
    printf("a\n");
  return 0;
}
```