G A B STRS

Problem description On the eve of EKATHRA-2K18 all the classes in GVP were gifted with strings consisting of 1's and 0's. But since CSE students of GVP are awesome as always, they have a special privilege to reject a string offered to them, if they do not like it. The students do not like a string if it contains 010 as a substring of the given string. But since the offered string is too long for