/*
	COMP2401/2001
	Assignment #1 - Problem #5
	http://people.scs.carleton.ca/~mjhinek/W13/COMP2401/assignments/ass1.html

	mjh 2013
*/

#include <stdio.h>



// helper functions


// isLetter: char -> int
// Purpose:  return 1 if input is a letter [a..zA..Z]
//           return 0 otherwise
// Examples: isLetter('a') -> 1
//           isLetter('-') -> 0
int isLetter(char in){
	return ( (in >= 65 && in <= 90) || (in >= 97 && in <= 122));
}

// isDigit : char -> int
// Purpose : return 1 if input is a decimal digit
//           return 0 otherwhise
// Examples: isDigit('2') -> 1
//           isDigit('a') -> 0
int isDigit(char in){
	return  (in >= 48) && (in <=57);
}


// chatToInt : char -> int
// Purpose : convert charater of a digit to the digits value
// Precondition: input character is a digit.
//               Thus, input satisfies isDigit(input) == 1
// Example : charToInt('3') -> 3
int charToInt(char in){
	// shift input value by 48 (ascii value of zero)
	return in - 48;
}

// convert : char -> char
// Purpose : convert case of input character
// Precondition: input character is a letter
//               Thus, input satisfies isLetter(input) == 1
// Examples : convert('s') -> 'S'
//            convert('Q') -> 'q'
char convert(char in){
	if( in>=65 && in<=90)
		// convert uppercase to lowercase
		return in+('a'-'A');
	else 
		// convert lowercase to uppercase
		return in-('a'-'A');
}



int main(){

	// We will consider two consecutive chars at a time.
	// Given the second input, we process the first.
	// 
	// the sequence '\\' 'n' is special and we treat it 
	// slightly differently (as we skip ahead to the next 
	// next char once we print '\n')
	

	char previous = '\0';  // first char
	char current = '\0';   // second char
	int  lastInt = 2;      // previous digit value
	int  count = 1;        // count for repeating letters
                          //   always default to 1

	// read in first char
	scanf("%c", &previous);

	while(1){ // loop until we find QQQ

		// read second char
		scanf("%c", &current);


		if (isDigit(previous) ){

			// deal with digits first
			// multiply digit by previous digit

			int currentInt = charToInt(previous);
			printf("%d", lastInt * currentInt);
			lastInt = currentInt;

		}else if(previous == 32){  // ascii 32 == space

			// convert space to underscore
			printf("_");

		}else if(isLetter(previous)){
		
			// process letters

			if(previous == current){
				// repeated letters 
				count += 1;

				// check if we should exit the program
				if (count == 3 && previous == 'Q'){
					printf("\n");
					return 0;
				}

			}else{
			
				// print out first/previous character
				printf("%c",convert(previous));
				if (count > 1) printf("%d", count);
				count = 1;   // reset counter
			}

		}else if(previous == '\\' && current == 'n'){

			// process \n
			printf("\n");
			scanf("%c",&current);

		}else{

			// everything else is simply echoed to output
			printf("%c", previous);
		}

		// let first be the second and repeat the loop...
		previous = current;
	}
}