D331122213231333131313231322331323223313231323221313231323221211   >>    D33112221323133313131323132233132322331323132322131323132322121   <<    D331122213231333131313231322331323223313231323221313231323221213   >>      D331122213231333131313231322331323223313231323221313231323221212   >>