#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 a, b, i, j, c, d;
  printf("Enter any natural number\n");
  scanf("%d", &a);
  for (i = 2; i <= a; i++) {
    if ((a % i) == 0) {
      printf("%d\n", i);
    }
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x2,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     1194 <main+0x74>
mov    -0x8(%rbp),%eax
cltd
idivl  -0x10(%rbp)
cmp    $0x0,%edx
jne    1181 <main+0x61>
mov    -0x10(%rbp),%esi
lea    0xea3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1186 <main+0x66>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1154 <main+0x34>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xecc(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb9(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%ecx
cmp    $0x2,%ecx
jge    1164 <main+0x34>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret
mov    $0x1,%ebx
lea    0xe93(%rip),%r14
jmp    1184 <main+0x54>
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
cmp    %ecx,%ebx
jge    115a <main+0x2a>
add    $0x1,%ebx
mov    %ecx,%eax
cltd
idiv   %ebx
test   %edx,%edx
jne    1180 <main+0x50>
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x4(%rsp),%ecx
jmp    1180 <main+0x50>

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

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"%d\0A\00"
@str = [25 x i8] c"Enter any natural number\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = icmp slt i32 %5, 2
br i1 %6, label %19, label %7
7: ; preds = %0, %15
%8 = phi i32 [ %16, %15 ], [ %5, %0 ]
%9 = phi i32 [ %17, %15 ], [ 2, %0 ]
%10 = srem i32 %8, %9
%11 = icmp eq i32 %10, 0
br i1 %11, label %12, label %15
12: ; preds = %7
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %9)
%14 = load i32, i32* %1
br label %15
15: ; preds = %7, %12
%16 = phi i32 [ %8, %7 ], [ %14, %12 ]
%17 = add nuw nsw i32 %9, 1
%18 = icmp slt i32 %9, %16
br i1 %18, label %7, label %19
19: ; preds = %15, %0
ret i32 0
}