#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*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int n, aux;
  int metadeoposta = 0;
  scanf("%d", &n);
  aux = n;
  while (aux != 0) {
    metadeoposta = metadeoposta * 10 + aux % 10;
    aux = aux / 10;
  }
  if (metadeoposta != n) {
    printf("NAO");
  } else {
    printf("SIM");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x10(%rbp)
lea    0xec3(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
cmpl   $0x0,-0xc(%rbp)
je     1183 <main+0x63>
imul   $0xa,-0x10(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0xc(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    -0x14(%rbp),%eax
add    %edx,%eax
mov    %eax,-0x10(%rbp)
mov    -0xc(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0xc(%rbp)
jmp    114c <main+0x2c>
mov    -0x10(%rbp),%eax
cmp    -0x8(%rbp),%eax
je     11a0 <main+0x80>
lea    0xe6d(%rip),%rdi
call   1030 <printf@plt>
jmp    11ac <main+0x8c>
lea    0xe60(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%r8d
xor    %edx,%edx
test   %r8d,%r8d
je     117f <main+0x5f>
mov    %r8d,%ecx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
lea    (%rdx,%rdx,4),%edx
movslq %ecx,%rax
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdi
shr    $0x3f,%rdi
sar    $0x22,%rcx
add    %edi,%ecx
lea    (%rcx,%rcx,1),%edi
lea    (%rdi,%rdi,4),%edi
mov    %eax,%esi
sub    %edi,%esi
lea    (%rsi,%rdx,2),%edx
add    $0x9,%eax
cmp    $0x12,%eax
ja     1150 <main+0x30>
cmp    %r8d,%edx
lea    0xe7e(%rip),%rax
lea    0xe73(%rip),%rdi
cmove  %rax,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"NAO\00"
@.str.2 = [4 x i8] c"SIM\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %4
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%6 = load i32, i32* %2
store i32 %6, i32* %3
br label %7
7: ; preds = %10, %0
%8 = load i32, i32* %3
%9 = icmp ne i32 %8, 0
br i1 %9, label %10, label %18
10: ; preds = %7
%11 = load i32, i32* %4
%12 = mul nsw i32 %11, 10
%13 = load i32, i32* %3
%14 = srem i32 %13, 10
%15 = add nsw i32 %12, %14
store i32 %15, i32* %4
%16 = load i32, i32* %3
%17 = sdiv i32 %16, 10
store i32 %17, i32* %3
br label %7
18: ; preds = %7
%19 = load i32, i32* %4
%20 = load i32, i32* %2
%21 = icmp ne i32 %19, %20
br i1 %21, label %22, label %24
22: ; preds = %18
%23 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %26
24: ; preds = %18
%25 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
br label %26
26: ; preds = %24, %22
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"NAO\00"
@.str.2 = [4 x i8] c"SIM\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = icmp eq i32 %4, 0
br i1 %5, label %15, label %6
6: ; preds = %0, %6
%7 = phi i32 [ %11, %6 ], [ 0, %0 ]
%8 = phi i32 [ %12, %6 ], [ %4, %0 ]
%9 = mul nsw i32 %7, 10
%10 = srem i32 %8, 10
%11 = add nsw i32 %9, %10
%12 = sdiv i32 %8, 10
%13 = add i32 %8, 9
%14 = icmp ult i32 %13, 19
br i1 %14, label %15, label %6
15: ; preds = %6, %0
%16 = phi i32 [ 0, %0 ], [ %11, %6 ]
%17 = icmp eq i32 %16, %4
%18 = select i1 %17, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0)
%19 = call i32 @printf(i8* dereferenceable(1) %18)
ret i32 0
}