#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 /*<<< orphan*/ scanf(char *, int *, int *);
int main() {
  int P, R;
  scanf("%d%d", &P, &R);
  if (P == 0) {
    printf("C\n");
  } else {
    if (R == 0)
      printf("B\n");
    else
      printf("A\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    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
cmpl   $0x0,-0x8(%rbp)
jne    115e <main+0x3e>
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
jmp    118a <main+0x6a>
cmpl   $0x0,-0xc(%rbp)
jne    1179 <main+0x59>
lea    0xe99(%rip),%rdi
call   1030 <printf@plt>
jmp    1185 <main+0x65>
lea    0xe8b(%rip),%rdi
call   1030 <printf@plt>
jmp    118a <main+0x6a>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1040 <scanf@plt>
cmpl   $0x0,(%rsp)
lea    0xec7(%rip),%rax
lea    0xebe(%rip),%rcx
cmove  %rax,%rcx
cmpl   $0x0,0x4(%rsp)
lea    0xeb2(%rip),%rdi
cmovne %rcx,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

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

LLVM IR (-O2):
@.str = [5 x i8] c"%d%d\00"
@str = [2 x i8] c"A\00"
@str.4 = [2 x i8] c"B\00"
@str.5 = [2 x i8] c"C\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32* %1, i32* %2)
%6 = load i32, i32* %1
%7 = icmp eq i32 %6, 0
%8 = load i32, i32* %2
%9 = icmp eq i32 %8, 0
%10 = select i1 %9, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str.4, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0)
%11 = select i1 %7, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @str.5, i64 0, i64 0), i8* %10
%12 = call i32 @puts(i8* dereferenceable(1) %11)
ret i32 0
}