import java.util.Scanner;

public class problem4 
{
   public static void main (String args[])
   {
	// for easier input
	Scanner scanIn = new Scanner(System.in);

	// ask for the patter
	System.out.println("Pattern String:");
	String pattern = scanIn.nextLine();
	
	// ask for the target
	System.out.println("\nTarget String:");
	String target = scanIn.nextLine();
	
	// we make sure that the pattern isn't empty
	if (pattern.length() == 0)
		System.out.println("\nPattern is empty.\n");
	else 
   { 
		System.out.println("\nResult of the parse:");
		
		// the indexes that will help us track how far we
		// are in our reading of the strings. We start with
		// the first character.
		int current_pattern = 0;
		int current_target  = 0;
		
		// as long as we haven't read all the target string
		while (current_target < target.length( )) 
      {
			// read the current pattern character
			switch(pattern.charAt(current_pattern%pattern.length())) 
         {
            // Display current char in target string
			   case '-': 
				   System.out.print(target.charAt(current_target));
				   // since we read that target character, the next becomes current
				   current_target += 1;
				   break;
			
            case '?':
				   // move to next pattern character
				   current_pattern += 1;
				   // compare with target
				   if (pattern.charAt(current_pattern % pattern.length()) == 
                   target.charAt(current_target)) 
               {
					   // they are identical so look into 'B' for ?ABC
					   current_pattern += 1;
					   if (pattern.charAt(current_pattern%pattern.length()) == '-') 
                  {
						   // display the target character from the comparison
						   System.out.print(target.charAt(current_target));
						   // move out of the ? condition after the C
						   current_pattern += 1;
					   } 
                  else if (pattern.charAt(current_pattern % 
                             pattern.length()) == '?') 
                  {
						   System.out.println("\n\n*** Forbidden use of ? ***\n");
						   System.exit(0);
					   }  
                  else 
                  {
						   // display the pattern character
						   System.out.print(pattern.charAt(current_pattern % 
                                      pattern.length()));
						   // move after the C
						   current_pattern += 1;
					   }
				   } 
               else // the comparison is false 
               { 
					   // they are different so look into 'C' for ?ABC
					   current_pattern += 2;
					   if (pattern.charAt(current_pattern % 
                      pattern.length()) == '-') {
						   // display the target character from the comparison
						   System.out.print(target.charAt(current_target));
					   } 
                  else if (pattern.charAt(current_pattern % 
                           pattern.length()) == '?') 
                  {
						   System.out.println("\n\n*** Forbidden use of ? ***\n");
						   System.exit(0);
					   } 
                  else 
                  {
						   // display the pattern character
						   System.out.print(pattern.charAt(current_pattern % 
                                      pattern.length()));
					   }
				   }
				   // we are done with that target character, we move to next
				   current_target += 1;
				   break;
			
            default: // neither ? or - so display current pattern character
				   System.out.print(pattern.charAt(current_pattern % 
                                pattern.length()));
			}
			// we are done with that character of pattern, let's move to next
			current_pattern += 1;
		}
	} // end of the 'if (pattern.length() == 0) ... else ...'

	// to be nice to command line systems
	System.out.println("\n");
}
}