import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
public class Solution {
public static void main(String[] args) throws Exception {
String o1 ="";
ArrayList arrayList =new ArrayList();
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
for (int i=0;i<3;i++) {
arrayList.add(bf.readLine());
}
if(arrayList.get(0).equals(arrayList.get(1))){o1="3";}
if(arrayList.get(1).equals(arrayList.get(2))){o1="1";}
if(arrayList.get(0).equals(arrayList.get(2))){o1="2";}
if (arrayList.get(0).equals(arrayList.get(2)) && arrayList.get(2).equals(arrayList.get(1)));
else{
System.out.println(o1);}
}
}
package com.javarush.task.task04.task0424;
/*
Три числа
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
public class Solution {
public static void main(String[] args) throws Exception {
String o1 ="";
ArrayList arrayList =new ArrayList();
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
for (int i=0;i<3;i++) {
arrayList.add(bf.readLine());
}
if(arrayList.get(0).equals(arrayList.get(1))){o1="3";}
if(arrayList.get(1).equals(arrayList.get(2))){o1="1";}
if(arrayList.get(0).equals(arrayList.get(2))){o1="2";}
if (arrayList.get(0).equals(arrayList.get(2)) && arrayList.get(2).equals(arrayList.get(1)));
else{
System.out.println(o1);}
}
}