import java.math.BigInteger;

public class K {
    public static void main(String[] args) {
        BigInteger start = new BigInteger("0552e025571c01bcd9eda59365a2fb3ae0bd7547dfeeeb13d971d848bcbf0467", 16);
        BigInteger stride = BigInteger.valueOf(58L).pow(32);//depends on the position of most-right unknown character
        BigInteger range = BigInteger.valueOf(58L).pow(5);//5=number of unknown characters
        BigInteger end = start.add(range);
        System.out.println("START: "+start.toString(16));
        System.out.println("END: "+end.toString(16));
        System.out.println("STRIDE: "+stride.toString(16));
    }
}