#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 n, v, p, c, mask;
  scanf("%d", &n);
  scanf("%d", &v);
  scanf("%d", &p);
  if (v == 1) {
    mask = 1 << p;
    c = n | mask;
  }
  if (v == 0) {
    mask = ~(1 << p);
    c = n & mask;
  }
  printf("%d", c);
  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
call   1040 <scanf@plt>
lea    0xeba(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeaa(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
cmpl   $0x1,-0xc(%rbp)
jne    117f <main+0x5f>
mov    -0x10(%rbp),%ecx
mov    $0x1,%eax
shl    %cl,%eax
mov    %eax,-0x18(%rbp)
mov    -0x8(%rbp),%eax
or     -0x18(%rbp),%eax
mov    %eax,-0x14(%rbp)
cmpl   $0x0,-0xc(%rbp)
jne    11a2 <main+0x82>
mov    -0x10(%rbp),%ecx
mov    $0x1,%eax
shl    %cl,%eax
xor    $0xffffffff,%eax
mov    %eax,-0x18(%rbp)
mov    -0x8(%rbp),%eax
and    -0x18(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%esi
lea    0xe54(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    0x4(%rsp),%al
mov    0xc(%rsp),%esi
mov    %esi,%ecx
bts    %eax,%ecx
btr    %eax,%esi
cmpl   $0x0,0x8(%rsp)
cmovne %ecx,%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
store i32 0, i32* %1
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %3)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %4)
%10 = load i32, i32* %3
%11 = icmp eq i32 %10, 1
br i1 %11, label %12, label %18
12: ; preds = %0
%13 = load i32, i32* %4
%14 = shl i32 1, %13
store i32 %14, i32* %6
%15 = load i32, i32* %2
%16 = load i32, i32* %6
%17 = or i32 %15, %16
store i32 %17, i32* %5
br label %18
18: ; preds = %12, %0
%19 = load i32, i32* %3
%20 = icmp eq i32 %19, 0
br i1 %20, label %21, label %28
21: ; preds = %18
%22 = load i32, i32* %4
%23 = shl i32 1, %22
%24 = xor i32 %23, -1
store i32 %24, i32* %6
%25 = load i32, i32* %2
%26 = load i32, i32* %6
%27 = and i32 %25, %26
store i32 %27, i32* %5
br label %28
28: ; preds = %21, %18
%29 = load i32, i32* %5
%30 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32 %29)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = bitcast i32* %1 to i8*
%5 = bitcast i32* %2 to i8*
%6 = bitcast i32* %3 to i8*
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %3)
%10 = load i32, i32* %2
%11 = icmp eq i32 %10, 1
%12 = load i32, i32* %3
%13 = shl nuw i32 1, %12
%14 = load i32, i32* %1
%15 = or i32 %14, %13
%16 = select i1 %11, i32 %15, i32 undef
%17 = icmp eq i32 %10, 0
%18 = xor i32 %13, -1
%19 = and i32 %14, %18
%20 = select i1 %17, i32 %19, i32 %16
%21 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32 %20)
ret i32 0
}