import java.util.*;
import java.util.regex.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    private static final Pattern imsiPattern = Pattern.compile("\\d{6,15}");
    
    public static void main(String[] args) {
        // matches() -> whole
        System.out.println(imsiPattern.matcher("12345").matches());
        System.out.println(imsiPattern.matcher("123456").matches());
        System.out.println(imsiPattern.matcher("123456789012345").matches());
        System.out.println(imsiPattern.matcher("12345678901234567890").matches());
        System.out.println(imsiPattern.matcher("abc1234567890abc").matches());
        
        // find() -> part
        System.out.println(imsiPattern.matcher("12345").find());
        System.out.println(imsiPattern.matcher("123456").find());
        System.out.println(imsiPattern.matcher("123456789012345").find());
        System.out.println(imsiPattern.matcher("12345678901234567890").find());
        System.out.println(imsiPattern.matcher("abc1234567890abc").find());
    }
}