#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 */
int /*<<< orphan*/ fgets(char *, int, int /*<<< orphan*/);
char *find(char *, char);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, char *);
int /*<<< orphan*/ stdin;
int main() {
  char s1[400], s2, *pos;
  short unsigned int rez;
  fgets(s1, sizeof(char) * 400, stdin);
  scanf("%c", &s2);
  pos = find(s1, s2);
  if (pos == NULL) {
    printf("-1");
    return -1;
  }
  rez = (long int)pos - (long int)s1;
  printf("%d", rez);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x1c0,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x1a0(%rbp),%rdi
mov    0x2e88(%rip),%rax
mov    (%rax),%edx
mov    $0x190,%esi
call   1040 <fgets@plt>
lea    0xe8d(%rip),%rdi
lea    -0x1a1(%rbp),%rsi
call   1060 <scanf@plt>
lea    -0x1a0(%rbp),%rdi
movsbl -0x1a1(%rbp),%esi
call   1050 <find@plt>
mov    %rax,-0x1b0(%rbp)
cmpq   $0x0,-0x1b0(%rbp)
jne    11c1 <main+0x81>
lea    0xe55(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11f5 <main+0xb5>
mov    -0x1b0(%rbp),%rax
lea    -0x1a0(%rbp),%rcx
sub    %rcx,%rax
mov    %ax,-0x1b2(%rbp)
movzwl -0x1b2(%rbp),%esi
lea    0xe1f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x1c0,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x1a0,%rsp
mov    0x2e99(%rip),%rax
mov    (%rax),%edx
lea    0x10(%rsp),%rbx
mov    %rbx,%rdi
mov    $0x190,%esi
call   1040 <fgets@plt>
lea    0xe96(%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     11a2 <main+0x62>
lea    0x10(%rsp),%rcx
sub    %ecx,%eax
movzwl %ax,%esi
lea    0xe6f(%rip),%rdi
xor    %ebx,%ebx
xor    %eax,%eax
call   1030 <printf@plt>
jmp    11b5 <main+0x75>
lea    0xe5a(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    $0xffffffff,%ebx
mov    %ebx,%eax
add    $0x1a0,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@stdin = global i32 0
@.str = [3 x i8] c"%c\00"
@.str.1 = [3 x i8] c"-1\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [400 x i8]
%3 = alloca i8
%4 = alloca i8*
%5 = alloca i16
store i32 0, i32* %1
%6 = getelementptr inbounds [400 x i8], [400 x i8]* %2, i64 0, i64 0
%7 = load i32, i32* @stdin
%8 = call i32 @fgets(i8* %6, i32 400, i32 %7)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %3)
%10 = getelementptr inbounds [400 x i8], [400 x i8]* %2, i64 0, i64 0
%11 = load i8, i8* %3
%12 = call i8* @find(i8* %10, 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.1, i64 0, i64 0))
store i32 -1, i32* %1
br label %27
17: ; preds = %0
%18 = load i8*, i8** %4
%19 = ptrtoint i8* %18 to i64
%20 = getelementptr inbounds [400 x i8], [400 x i8]* %2, i64 0, i64 0
%21 = ptrtoint i8* %20 to i64
%22 = sub nsw i64 %19, %21
%23 = trunc i64 %22 to i16
store i16 %23, i16* %5
%24 = load i16, i16* %5
%25 = zext i16 %24 to i32
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32 %25)
store i32 0, i32* %1
br label %27
27: ; preds = %17, %15
%28 = load i32, i32* %1
ret i32 %28
}

LLVM IR (-O2):
@stdin = global i32 0
@.str = [3 x i8] c"%c\00"
@.str.1 = [3 x i8] c"-1\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca [400 x i8]
%2 = alloca i8
%3 = getelementptr inbounds [400 x i8], [400 x i8]* %1, i64 0, i64 0
%4 = load i32, i32* @stdin
%5 = call i32 @fgets(i8* %3, i32 400, i32 %4)
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %2)
%7 = load i8, i8* %2
%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.1, i64 0, i64 0))
br label %19
12: ; preds = %0
%13 = ptrtoint i8* %8 to i64
%14 = ptrtoint [400 x i8]* %1 to i64
%15 = sub nsw i64 %13, %14
%16 = trunc i64 %15 to i32
%17 = and i32 %16, 65535
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32 %17)
br label %19
19: ; preds = %12, %10
%20 = phi i32 [ -1, %10 ], [ 0, %12 ]
ret i32 %20
}