submit B.cpp to 'B - AtCoder Beginner Contest 111' (abc111) [C++14 (GCC 5.4.1)]
submit B.cpp to 'B - AtCoder Beginner Contest 111' (abc111) [C++14 (GCC 5.4.1)]

kazunetakahashi/atcoder,kazunetakahashi/atcoder