#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);
int /*<<< orphan*/ scanf(char *, ...);
int main() {
  int test;
  scanf("%i", &test);
  for (int a = 1; a <= test; a++) {
    long int n1, n2;
    scanf("%ld %ld", &n1, &n2);
    printf("%lu\n", n1 * n2);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     118d <main+0x6d>
lea    0xea8(%rip),%rdi
lea    -0x18(%rbp),%rsi
lea    -0x20(%rbp),%rdx
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x18(%rbp),%rsi
imul   -0x20(%rbp),%rsi
lea    0xe91(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1148 <main+0x28>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
sub    $0x20,%rsp
lea    0xecd(%rip),%rdi
lea    0xc(%rsp),%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
cmpl   $0x0,0xc(%rsp)
jle    118c <main+0x6c>
lea    0xeb6(%rip),%r14
lea    0x18(%rsp),%r15
lea    0x10(%rsp),%r12
lea    0xead(%rip),%rbx
xor    %ebp,%ebp
mov    %r14,%rdi
mov    %r15,%rsi
mov    %r12,%rdx
xor    %eax,%eax
call   1040 <scanf@plt>
mov    0x10(%rsp),%rsi
imul   0x18(%rsp),%rsi
mov    %rbx,%rdi
call   1030 <printf@plt>
add    $0x1,%ebp
cmp    0xc(%rsp),%ebp
jl     1160 <main+0x40>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

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

LLVM IR (-O2):
@.str = [3 x i8] c"%i\00"
@.str.1 = [8 x i8] c"%ld %ld\00"
@.str.2 = [5 x i8] c"%lu\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i64
%3 = alloca i64
%4 = bitcast i32* %1 to i8*
%5 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%6 = load i32, i32* %1
%7 = icmp slt i32 %6, 1
br i1 %7, label %11, label %8
8: ; preds = %0
%9 = bitcast i64* %2 to i8*
%10 = bitcast i64* %3 to i8*
br label %12
11: ; preds = %12, %0
ret i32 0
12: ; preds = %8, %12
%13 = phi i32 [ 1, %8 ], [ %19, %12 ]
%14 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i64* %2, i64* %3)
%15 = load i64, i64* %2
%16 = load i64, i64* %3
%17 = mul nsw i64 %16, %15
%18 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i64 %17)
%19 = add nuw nsw i32 %13, 1
%20 = load i32, i32* %1
%21 = icmp slt i32 %13, %20
br i1 %21, label %12, label %11
}