#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
char *find(char *, char);
int /*<<< orphan*/ getchar();
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, char *);
int main() {
  int const arr = 400;
  char haystack[arr], *f, needle;
  scanf("%[^\n]s", haystack);
  getchar();
  scanf("%c", &needle);
  f = find(haystack, needle);
  if (f == NULL) {
    printf("-1");
  } else {
    printf("%d", (int)(f - haystack));
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x1b0,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x190,-0x8(%rbp)
mov    %rsp,%rax
mov    %rax,-0x10(%rbp)
lea    0xe99(%rip),%rdi
lea    -0x1b0(%rbp),%rsi
call   1060 <scanf@plt>
mov    $0x0,%al
call   1040 <getchar@plt>
lea    0xe86(%rip),%rdi
lea    -0x19(%rbp),%rsi
call   1060 <scanf@plt>
lea    -0x1b0(%rbp),%rdi
movsbl -0x19(%rbp),%esi
call   1050 <find@plt>
mov    %rax,-0x18(%rbp)
cmpq   $0x0,-0x18(%rbp)
jne    11bc <main+0x7c>
lea    0xe5a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11da <main+0x9a>
mov    -0x18(%rbp),%rax
lea    -0x1b0(%rbp),%rcx
sub    %rcx,%rax
mov    %eax,%esi
lea    0xe3a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x10(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
add    $0x1b0,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x1a0,%rsp
lea    0xeb1(%rip),%rdi
lea    0x10(%rsp),%rbx
mov    %rbx,%rsi
call   1060 <scanf@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
lea    0xe9d(%rip),%rdi
lea    0xf(%rsp),%rsi
call   1060 <scanf@plt>
movsbl 0xf(%rsp),%esi
mov    %rbx,%rdi
call   1050 <find@plt>
test   %rax,%rax
je     119f <main+0x5f>
lea    0x10(%rsp),%rcx
sub    %ecx,%eax
lea    0xe79(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1030 <printf@plt>
jmp    11ad <main+0x6d>
lea    0xe64(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x1a0,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [7 x i8] c"%[^\0A]s\00"
@.str.1 = [3 x i8] c"%c\00"
@.str.2 = [3 x i8] c"-1\00"
@.str.3 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i8
store i32 0, i32* %1
store i32 400, i32* %2
%6 = call i8* @llvm.stacksave()
store i8* %6, i8** %3
%7 = alloca i8, i64 400
%8 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* %7)
%9 = call i32 (...) @getchar()
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %5)
%11 = load i8, i8* %5
%12 = call i8* @find(i8* %7, i8 signext %11)
store i8* %12, i8** %4
%13 = load i8*, i8** %4
%14 = icmp eq i8* %13, null
br i1 %14, label %15, label %17
15: ; preds = %0
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %24
17: ; preds = %0
%18 = load i8*, i8** %4
%19 = ptrtoint i8* %18 to i64
%20 = ptrtoint i8* %7 to i64
%21 = sub i64 %19, %20
%22 = trunc i64 %21 to i32
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %22)
br label %24
24: ; preds = %17, %15
store i32 0, i32* %1
%25 = load i8*, i8** %3
%26 = load i32, i32* %1
ret i32 %26
}

LLVM IR (-O2):
@.str = [7 x i8] c"%[^\0A]s\00"
@.str.1 = [3 x i8] c"%c\00"
@.str.2 = [3 x i8] c"-1\00"
@.str.3 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i8
%2 = alloca [400 x i8]
%3 = getelementptr inbounds [400 x i8], [400 x i8]* %2, i64 0, i64 0
%4 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (...) @getchar()
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %1)
%7 = load i8, i8* %1
%8 = call i8* @find(i8* %3, i8 signext %7)
%9 = icmp eq i8* %8, null
br i1 %9, label %10, label %12
10: ; preds = %0
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %18
12: ; preds = %0
%13 = ptrtoint i8* %8 to i64
%14 = ptrtoint [400 x i8]* %2 to i64
%15 = sub i64 %13, %14
%16 = trunc i64 %15 to i32
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %12, %10
ret i32 0
}