#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream f("cifra.in");
ofstream g("cifra.out");
int a[11], T, n;
char N[101];
int main()
{
    a[1]=1;
    a[2]=5;
    a[3]=4;
    a[4]=0;
    a[5]=5;
    a[6]=1;
    a[7]=0;
    a[8]=4;
    a[9]=5;
    cin >> T;
    for(int i=0;i<=T;i++)
    {
        cin.getline(N,101);
        int j=100;
        while(N[j]==0) j--;
        n = (N[j]-'0') + (N[j-1]-'0')*10;
        cout << ((n/5)*5 + a[n%5])%5 << endl;
    }
    return 0;

}