true; CodeJam L3 ~ Codeforces 2200
https://codeforces.com/blog/entry/89276
Stanley Zhong https://codeforces.com/profile/qpwoeirut
The legendary Ben Qi https://codeforces.com/profile/Benq
https://codeforces.com/blog/entry/89276
Stanley Zhong https://codeforces.com/profile/qpwoeirut
The legendary Ben Qi https://codeforces.com/profile/Benq