C1212122313132322331323323132313231232313232233131323133112112331   >>    C121212231313232233132332313231323123231323223313132313311211233   <<    C1212122313132322331323323132313231232313232233131323133112112333   >>      C1212122313132322331323323132313231232313232233131323133112112332   >>