#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 *);
int main() {
  int a, b, c;
  scanf("%d\n%d\n%d", &a, &b, &c);
  if (a == b && b == c)
    printf("1\n");
  else if (a != b && a != c && b != c)
    printf("2\n");
  else
    printf("3\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
lea    -0x10(%rbp),%rcx
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jne    1170 <main+0x50>
mov    -0xc(%rbp),%eax
cmp    -0x10(%rbp),%eax
jne    1170 <main+0x50>
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
jmp    11b6 <main+0x96>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
je     11a5 <main+0x85>
mov    -0x8(%rbp),%eax
cmp    -0x10(%rbp),%eax
je     11a5 <main+0x85>
mov    -0xc(%rbp),%eax
cmp    -0x10(%rbp),%eax
je     11a5 <main+0x85>
lea    0xe71(%rip),%rdi
call   1030 <printf@plt>
jmp    11b1 <main+0x91>
lea    0xe63(%rip),%rdi
call   1030 <printf@plt>
jmp    11b6 <main+0x96>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
lea    0xed5(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1040 <scanf@plt>
mov    0x14(%rsp),%edx
mov    0x10(%rsp),%eax
mov    0xc(%rsp),%ecx
cmp    %eax,%edx
jne    115c <main+0x3c>
cmp    %ecx,%eax
jne    115c <main+0x3c>
lea    0xeb3(%rip),%rdi
jmp    1178 <main+0x58>
cmp    %eax,%edx
je     1171 <main+0x51>
cmp    %ecx,%edx
je     1171 <main+0x51>
cmp    %ecx,%eax
je     1171 <main+0x51>
lea    0xe9c(%rip),%rdi
jmp    1178 <main+0x58>
lea    0xe91(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [9 x i8] c"%d\0A%d\0A%d\00"
@.str.1 = [3 x i8] c"1\0A\00"
@.str.2 = [3 x i8] c"2\0A\00"
@.str.3 = [3 x i8] c"3\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i32* %2, i32* %3, i32* %4)
%6 = load i32, i32* %2
%7 = load i32, i32* %3
%8 = icmp eq i32 %6, %7
br i1 %8, label %9, label %15
9: ; preds = %0
%10 = load i32, i32* %3
%11 = load i32, i32* %4
%12 = icmp eq i32 %10, %11
br i1 %12, label %13, label %15
13: ; preds = %9
%14 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
br label %32
15: ; preds = %9, %0
%16 = load i32, i32* %2
%17 = load i32, i32* %3
%18 = icmp ne i32 %16, %17
br i1 %18, label %19, label %29
19: ; preds = %15
%20 = load i32, i32* %2
%21 = load i32, i32* %4
%22 = icmp ne i32 %20, %21
br i1 %22, label %23, label %29
23: ; preds = %19
%24 = load i32, i32* %3
%25 = load i32, i32* %4
%26 = icmp ne i32 %24, %25
br i1 %26, label %27, label %29
27: ; preds = %23
%28 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %31
29: ; preds = %23, %19, %15
%30 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
br label %31
31: ; preds = %29, %27
br label %32
32: ; preds = %31, %13
ret i32 0
}

LLVM IR (-O2):
@.str = [9 x i8] c"%d\0A%d\0A%d\00"
@str = [2 x i8] c"3\00"
@str.4 = [2 x i8] c"2\00"
@str.5 = [2 x i8] c"1\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 ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i32* %1, i32* %2, i32* %3)
%8 = load i32, i32* %1
%9 = load i32, i32* %2
%10 = icmp eq i32 %8, %9
%11 = load i32, i32* %3
%12 = icmp eq i32 %9, %11
%13 = select i1 %10, i1 %12, i1 false
br i1 %13, label %19, label %14
14: ; preds = %0
br i1 %10, label %18, label %15
15: ; preds = %14
%16 = icmp eq i32 %8, %11
%17 = select i1 %16, i1 true, i1 %12
br i1 %17, label %18, label %19
18: ; preds = %15, %14
br label %19
19: ; preds = %15, %0, %18
%20 = phi i8* [ getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0), %18 ], [ getelementptr inbounds ([2 x i8], [2 x i8]* @str.5, i64 0, i64 0), %0 ], [ getelementptr inbounds ([2 x i8], [2 x i8]* @str.4, i64 0, i64 0), %15 ]
%21 = call i32 @puts(i8* dereferenceable(1) %20)
ret i32 0
}