#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 */
scalar_t__ palindrom(int, char *);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, char **);
int strlen(char *);
int main() {
  int i = 0, l;
  char s[50];
  scanf("%s", &s);
  l = strlen(s) - 1;
  if (palindrom(l, s)) {
    printf("Yes");
  } else
    printf("No");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
lea    -0x40(%rbp),%rsi
lea    0xe9f(%rip),%rdi
call   1050 <scanf@plt>
lea    -0x40(%rbp),%rdi
call   1030 <strlen@plt>
sub    $0x1,%eax
mov    %eax,-0xc(%rbp)
mov    -0xc(%rbp),%edi
lea    -0x40(%rbp),%rsi
call   1060 <palindrom@plt>
cmp    $0x0,%rax
je     119c <main+0x5c>
lea    0xe71(%rip),%rdi
call   1040 <printf@plt>
jmp    11a8 <main+0x68>
lea    0xe64(%rip),%rdi
call   1040 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x40,%rsp
lea    0xeb4(%rip),%rdi
mov    %rsp,%rbx
mov    %rbx,%rsi
call   1050 <scanf@plt>
mov    %rbx,%rdi
call   1030 <strlen@plt>
lea    -0x1(%rax),%edi
mov    %rbx,%rsi
call   1060 <palindrom@plt>
test   %rax,%rax
lea    0xe93(%rip),%rax
lea    0xe88(%rip),%rdi
cmove  %rax,%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [4 x i8] c"Yes\00"
@.str.2 = [3 x i8] c"No\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca [50 x i8]
store i32 0, i32* %1
store i32 0, i32* %2
%5 = bitcast [50 x i8]* %4 to i8**
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8** %5)
%7 = getelementptr inbounds [50 x i8], [50 x i8]* %4, i64 0, i64 0
%8 = call i32 @strlen(i8* %7)
%9 = sub nsw i32 %8, 1
store i32 %9, i32* %3
%10 = load i32, i32* %3
%11 = getelementptr inbounds [50 x i8], [50 x i8]* %4, i64 0, i64 0
%12 = call i64 @palindrom(i32 %10, i8* %11)
%13 = icmp ne i64 %12, 0
br i1 %13, label %14, label %16
14: ; preds = %0
%15 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %18
16: ; preds = %0
%17 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %18
18: ; preds = %16, %14
%19 = load i32, i32* %1
ret i32 %19
}

LLVM IR (-O2):
@.str = [3 x i8] c"%s\00"
@.str.1 = [4 x i8] c"Yes\00"
@.str.2 = [3 x i8] c"No\00"
define i32 @main() {
%1 = alloca [50 x i8]
%2 = getelementptr inbounds [50 x i8], [50 x i8]* %1, i64 0, i64 0
%3 = bitcast [50 x i8]* %1 to i8**
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8** %3)
%5 = call i32 @strlen(i8* %2)
%6 = add nsw i32 %5, -1
%7 = call i64 @palindrom(i32 %6, i8* %2)
%8 = icmp eq i64 %7, 0
%9 = select i1 %8, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0)
%10 = call i32 @printf(i8* dereferenceable(1) %9)
ret i32 0
}