C111123313331323113313331323133313331311331311331333133321233133313331313231311   >>    C11112331333132311331333132313331333131133131133133313332123313331333131323131   <<    C111123313331323113313331323133313331311331311331333133321233133313331313231313   >>      C111123313331323113313331323133313331311331311331333133321233133313331313231312   >>