XD XC XA IC IB
= 3rd berth / 
= sofa bed / 
= double sofa bed with bunk bed / 
= cabins with shower / 
= cabins with porthole(s)
XD XC XA IC IB
= 3rd berth / = sofa bed / = double sofa bed with bunk bed / = cabins with shower / = cabins with porthole(s)