1 ACM
2 ICPC 2013 WORLD FINALS
3 IN ST. PETERSBURG
4 SPONSORED BY IBM
5 ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz~`!@#$%^&*()_+-={}[]\|'";/.,<>?
6 I
7 IIIIIIIIIIIII