#!/usr/bin/python3 import sys if __name__ == "__main__": for chunk_header in sys.stdin: chunk_length = int(chunk_header) while chunk_length != 0: line = sys.stdin.readline() updated_line = line.replace("\n", "") chunk_length -= 1 print(updated_line + "\t" + "Key " + updated_line, end="\n") sys.stdout.flush()