C12312213132313231311331313331312323133313231311233132322331323223312331   >>    C1231221313231323131133131333131232313331323131123313232233132322331233   <<    C12312213132313231311331313331312323133313231311233132322331323223312333   >>      C12312213132313231311331313331312323133313231311233132322331323223312332   >>