Too many assignments (part 1)

This is an interactive problem. Anant has N assignment indexed from 1 to N which he needs to submit but he doesn't know the last date of submission of these assignments. So, he asked his topper friend Atharv about it. Now since Atharv has almost completed his assignments, he will play a game with Anant. Anant will give the index of two assignments and Atharv will reply with 1 or 2. - '1' means th