#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, int);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int n, i;
  scanf("%d", &n);
  n++;
  for (i = 2; i < n; i += 2) {
    printf("%d^2 = %d\n", i, i * i);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
movl   $0x2,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    117f <main+0x5f>
mov    -0xc(%rbp),%esi
mov    -0xc(%rbp),%edx
imul   -0xc(%rbp),%edx
lea    0xe97(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x2,%eax
mov    %eax,-0xc(%rbp)
jmp    114f <main+0x2f>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xed5(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
lea    0x1(%rax),%ecx
mov    %ecx,0x4(%rsp)
cmp    $0x2,%eax
jl     1178 <main+0x58>
mov    $0x2,%ebx
lea    0xeb2(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
mov    %ebx,%edx
imul   %ebx,%edx
mov    %r14,%rdi
mov    %ebx,%esi
call   1030 <printf@plt>
add    $0x2,%ebx
cmp    0x4(%rsp),%ebx
jl     1160 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

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

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [11 x i8] c"%d^2 = %d\0A\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 = add nsw i32 %4, 1
store i32 %5, i32* %1
%6 = icmp sgt i32 %4, 1
br i1 %6, label %7, label %14
7: ; preds = %0, %7
%8 = phi i32 [ %11, %7 ], [ 2, %0 ]
%9 = mul nsw i32 %8, %8
%10 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %8, i32 %9)
%11 = add nuw nsw i32 %8, 2
%12 = load i32, i32* %1
%13 = icmp slt i32 %11, %12
br i1 %13, label %7, label %14
14: ; preds = %7, %0
ret i32 0
}