import java.util.Scanner;

public class PasswordValidator {

	public static void main(String[] args) {
		// PASSWORD MUST CONTAIN MIN 8 CHARS, MAX 12 CHARS, ATLEAST 1 UPPERCASE, 1 LOWERCASE, 1 DIGIT, 1 SPL CHAR 
		Scanner scn = new Scanner(System.in);
		int maxLen = 12, minLen=8;
		System.out.println("Enter a password to validate");
		String pwd = scn.next();
		scn.close();
		int n = pwd.length();
		if (n<minLen || n>maxLen) {
			System.out.println("Password length must be between 8 to 12 characters");
			return;
		}
		char[] pw = pwd.toCharArray();
		int cntLower=0, cntUpper=0, cntDigit=0, cntSpl=0;
		for (int i=0; i<n; i++) {
			char ch = pw[i];
			if (ch>='A' && ch<='Z') cntUpper++;
			else if (ch>='a' && ch<='z') cntLower++;
			else if (ch>='1' && ch<='9') cntDigit++;
			else if (ch=='!' || ch=='£' || ch=='$' || ch=='%' || ch=='^' || ch=='&' || ch=='*' || ch=='-' || ch=='_' || ch=='+' || ch=='=' || ch==':' || ch==';' || ch=='@'|| ch=='#'|| ch=='~'|| ch=='>'|| ch=='<'|| ch=='?'|| ch=='.') cntSpl++; 
		}
		if (cntLower>0 && cntUpper>0 && cntDigit>0  && cntSpl>0) System.out.println("Password is valid...");
		else {
			System.out.println("Password is NOT VALID");
			System.out.println("PASSWORD MUST CONTAIN ATLEAST 1 UPPERCASE, 1 LOWERCASE, 1 DIGIT AND 1 SPL CHAR FROM ! £ $ % ^ & * - _ + = : ; @ ~ # ?");
		}
	}

}