원문 출력 부분(https://codingcompetitions.wit...):

For each test case, output one line containing "Case #x: y", where x is the test case number (starting from 1) and y is the total number of possible passwords modulo 1000000007(10⁹+7).

지금은 출력 부분에 입력이 쓰여 있습니다.