5. There are three vessels A,B, and C with capacities 5, 3 and 2 respectively. There is a computer program that can perform certain functions as described below:
Drain (Y) : drains the liquid in a vessel Y.Fill (X,Y) : fill amount from Y into X such that the amount of liquid withdrawn from Yis equal to the liquid in X.Empty (X,Y) : empty amount from Y into X such that the amount left in Y is equal to the amount of liquid in X.
The following operations are performed in succession
1. Fill (C,A) 2. ——— 3. Fill (C,A)
What should the second operation be if after the three operations A should contain one litre of liquid?