import std.stdio, std.algorithm, std.array, std.string, std.conv, std.format;

void main() {
    char letter;
    char[] deck;
    char[] input;
    int[] numbers;
    size_t size = 0;
    size_t size_negative = 0;
    deck.length = 50;

    while(readln(input)){
        try{
            formattedRead(input, "%c:%(%d,%)\n",&letter, &numbers);
        }
        catch{
            formattedRead(input, "%c:%(%d,%)",&letter, &numbers);
        }
        for(int i = 0; i < numbers.length; i++){
            deck[numbers[i]+15] = letter;
            if(numbers[i] > 0){
                size++;
            }
            else{
                size_negative++;
            }
        }
    }
    deck = deck[(16-size_negative)..(16+size)];
    //deck.length = size_negative+size;
    writeln(deck);
}