import java.io.*;
import java.util.*;

public class itsy_mb {
    public static void main(String[] args) throws IOException {
        try (BufferedReader in = new BufferedReader(new InputStreamReader(System.in))) {
            long n = Long.parseLong(in.readLine());
            int bits = 64 - Long.numberOfLeadingZeros(n);
            while ((bits & -bits) != bits) ++bits;
            System.out.println(bits + (bits == 1 ? " bit" : " bits"));
        }
    }
}