davidhmaciasv

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.StringTokenizer;

public class Criptografia {
	public static void main(String[] args) throws IOException {
		PrintWriter out = new PrintWriter(System.out);

davidhmaciasv

public class Commands {
	public static long gcd(long a, long b) {
		long t;
		while (b != 0) {
			t = b;
			b = a % b;
			a = t;
		}
		return a;