formatInput.java

import java.util.Scanner;

public class ChangeFormate {
	@SuppressWarnings({ "resource", "unused" })
	public static void main(String[] args) {
		String[] storeOutput;
		Scanner input = new Scanner(System.in);
		String charInput = input.next();
		String formatInput = input.next();
		int IndexOfchar = 0;
		int IndexOfFormat = 0;
		int lastIndexOfChar = charInput.length();
		while(IndexOfchar <= lastIndexOfChar) {
			if(IndexOfchar != lastIndexOfChar) {
				if (formatInput.charAt(IndexOfFormat) == 'x' || formatInput.charAt(IndexOfFormat) == 'X') {
					System.out.print(charInput.charAt(IndexOfchar));
					IndexOfchar++;
					IndexOfFormat++;
				} else {
					System.out.print("-");
					IndexOfFormat++;
				}
			} else {
				break;
			}
		}

	}
}