Volume change of ideal gas

Classical Mechanics Level 1

The above is the pressure-temperature diagram of a given mass of ideal gas which is circulating by the sequence A $\to$ B $\to$ C $\to$ A. Let V $_A$ , V $_B$ and V $_C$ denote the volumes at A, B and C, respectively, then what is the ratio $V_A:V_B:V_C?$