// NOTE: it is recommended to use this even if you don't understand the following code.


#include <iostream>



using namespace std;

int main() {
    // uncomment the two following lines if you want to read/write from files
    // ifstream cin("input.txt");
    // ofstream cout("output.txt");

    int A,B,C;
    cin >> A;
    cin >> B;
    cin >> C;

    int K = 0;


    // INSERT YOUR CODE HERE
    if((A==B) and (B==C)) K=1;
    else if(A==B or A==C or B==C) K=3;
    else K=6;


    cout << K << endl;

    return 0;
}