#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 *, long long);
int scanf(char *, long long *);
int main() {
  long long n;
  while (scanf("%lld", &n) == 1) {
    n = (n * (n + 1)) / 2;
    n *= n;
    printf("%lld\n", n);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
cmp    $0x1,%eax
jne    1188 <main+0x68>
mov    -0x10(%rbp),%rax
mov    -0x10(%rbp),%rcx
add    $0x1,%rcx
imul   %rcx,%rax
mov    $0x2,%ecx
cqto
idiv   %rcx
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rax
imul   -0x10(%rbp),%rax
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xe87(%rip),%rdi
call   1030 <printf@plt>
jmp    112f <main+0xf>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x10,%rsp
lea    0xed0(%rip),%rdi
lea    0x8(%rsp),%rsi
call   1040 <scanf@plt>
cmp    $0x1,%eax
jne    119b <main+0x7b>
lea    0xebf(%rip),%r14
lea    0xeb3(%rip),%r15
lea    0x8(%rsp),%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    0x8(%rsp),%rax
lea    0x1(%rax),%rcx
imul   %rax,%rcx
mov    %rcx,%rsi
shr    $0x3f,%rsi
add    %rcx,%rsi
sar    %rsi
imul   %rsi,%rsi
mov    %rsi,0x8(%rsp)
mov    %r14,%rdi
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <scanf@plt>
cmp    $0x1,%eax
je     1160 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

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

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