#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 argc, char *argv[]) {
  int t, n;
  scanf("%d", &t);
  while (t--) {
    scanf("%d", &n);
    printf("%d\n", n > 2 ? n - 2 : 0);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
mov    %eax,%ecx
add    $0xffffffff,%ecx
mov    %ecx,-0x14(%rbp)
cmp    $0x0,%eax
je     11a0 <main+0x80>
lea    0xe9f(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <scanf@plt>
cmpl   $0x2,-0x18(%rbp)
jle    1182 <main+0x62>
mov    -0x18(%rbp),%eax
sub    $0x2,%eax
mov    %eax,-0x1c(%rbp)
jmp    118c <main+0x6c>
xor    %eax,%eax
mov    %eax,-0x1c(%rbp)
jmp    118c <main+0x6c>
mov    -0x1c(%rbp),%esi
lea    0xe6d(%rip),%rdi
call   1030 <printf@plt>
jmp    1146 <main+0x26>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
lea    0xed2(%rip),%rdi
mov    %rsp,%rsi
call   1040 <scanf@plt>
subl   $0x1,(%rsp)
jb     1186 <main+0x66>
lea    0xebd(%rip),%r14
lea    0x4(%rsp),%r15
xor    %ebp,%ebp
lea    0xeb2(%rip),%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
mov    %r14,%rdi
mov    %r15,%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
lea    -0x2(%rax),%esi
cmp    $0x3,%eax
cmovl  %ebp,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
subl   $0x1,(%rsp)
jae    1160 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

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

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