C111221232313231313231313231323223313132323132313331323231323132313231313221   >>    C11122123231323131323131323132322331313232313231333132323132313231323131322   <<    C111221232313231313231313231323223313132323132313331323231323132313231313223   >>      C111221232313231313231313231323223313132323132313331323231323132313231313222   >>