Read the passage below and solve the questions based on it.
There are three bottles of water- A, B and C whose capacities are 5 litres, 3 litres and 2 litres respectively. For transferring water from one bottle to another and to drain out the bottles, there exists a programe which is computer-controlled. The computer that controls the flow through these pipes can be fed with three types of instructions, as explained below:
Initially, A full of water and B and C are empty.
Consider the same sequence of three instructions and the same initial state mentioned in the last question. Three more instructions are added at the end of the above sequence to have A contain 4 litres of water. In this total sequence of six instructions, the fourth one is Drain A. This is the only Drain instruction in the entire sequence. At the end of the execution of the above sequence, how much water is contained