#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 /*<<< orphan*/ scanf(char *, int *, ...);
int main() {
  int t, n, a, d;
  scanf("%d", &t);
  while (t--) {
    scanf("%d%d%d", &n, &a, &d);
    printf("%d\n", (n * ((2 * a) + ((n - 1) * d))) / 2);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xece(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,%ecx
add    $0xffffffff,%ecx
mov    %ecx,-0x8(%rbp)
cmp    $0x0,%eax
je     11a2 <main+0x82>
lea    0xea4(%rip),%rdi
lea    -0xc(%rbp),%rsi
lea    -0x10(%rbp),%rdx
lea    -0x14(%rbp),%rcx
mov    $0x0,%al
call   1040 <scanf@plt>
mov    -0xc(%rbp),%eax
mov    -0x10(%rbp),%ecx
shl    $0x1,%ecx
mov    -0xc(%rbp),%edx
sub    $0x1,%edx
imul   -0x14(%rbp),%edx
add    %edx,%ecx
imul   %ecx,%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
mov    %eax,%esi
lea    0xe6f(%rip),%rdi
call   1030 <printf@plt>
jmp    1141 <main+0x21>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xed0(%rip),%rdi
mov    %rsp,%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
subl   $0x1,(%rsp)
jb     11b0 <main+0x90>
lea    0xeb5(%rip),%r14
lea    0xc(%rsp),%r15
lea    0x8(%rsp),%r12
lea    0x4(%rsp),%r13
lea    0xea6(%rip),%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
mov    %r14,%rdi
mov    %r15,%rsi
mov    %r12,%rdx
mov    %r13,%rcx
xor    %eax,%eax
call   1040 <scanf@plt>
mov    0xc(%rsp),%eax
mov    0x8(%rsp),%ecx
lea    -0x1(%rax),%edx
imul   0x4(%rsp),%edx
lea    (%rdx,%rcx,2),%ecx
imul   %eax,%ecx
mov    %ecx,%esi
shr    $0x1f,%esi
add    %ecx,%esi
sar    %esi
mov    %rbx,%rdi
call   1030 <printf@plt>
subl   $0x1,(%rsp)
jae    1170 <main+0x50>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

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

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [7 x i8] c"%d%d%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 = bitcast i32* %1 to i8*
%6 = bitcast i32* %2 to i8*
%7 = bitcast i32* %3 to i8*
%8 = bitcast i32* %4 to i8*
%9 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%10 = load i32, i32* %1
%11 = add nsw i32 %10, -1
store i32 %11, i32* %1
%12 = icmp eq i32 %10, 0
br i1 %12, label %28, label %13
13: ; preds = %0, %13
%14 = call i32 (i8*, i32*, ...) @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3, i32* %4)
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = shl nsw i32 %16, 1
%18 = add nsw i32 %15, -1
%19 = load i32, i32* %4
%20 = mul nsw i32 %19, %18
%21 = add nsw i32 %20, %17
%22 = mul nsw i32 %21, %15
%23 = sdiv i32 %22, 2
%24 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %23)
%25 = load i32, i32* %1
%26 = add nsw i32 %25, -1
store i32 %26, i32* %1
%27 = icmp eq i32 %25, 0
br i1 %27, label %28, label %13
28: ; preds = %13, %0
ret i32 0
}