/*
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 */
package fse;

import java.util.Scanner;

public class Main {

    static String[] tmp;

    public static boolean check(String x) {
        if (!x.isEmpty()) {
            if (x.split("/").length == 3) {
                tmp = x.split("/");
                if (isNumber(tmp[0]) && isNumber(tmp[1]) && isNumber(tmp[2])) {
                    return true;
                }
            }
        }
        return false;
    }

    public static int[] str2int(String[] a) {
        int[] f = new int[a.length];
        for (int i = 0; i < a.length; i++) {
            f[i] = Integer.parseInt(a[i]);
        }
        return f;
    }

    public static boolean isNumber(String s) {
        try {
            Integer.parseInt(s);
            return true;
        } catch (Exception e) {
            return false;
        }

    }

    public static void main(String[] arg) {
        String x = null;
        do {
            if (!check(x) && x != null) {
                System.out.print("MEEEEEEEEEEEEEEEC, Formato no valido");
            }
            x = new Scanner(System.in).next();

        } while (!check(x));
        int[] yay=str2int(x.split("/"));
    }
}