C12121212311232322331313232233132313331323331323223313231313231323131322131   >>    C1212121231123232233131323223313231333132333132322331323131323132313132213   <<    C12121212311232322331313232233132313331323331323223313231313231323131322133   >>      C12121212311232322331313232233132313331323331323223313231313231323131322132   >>