C221212331313232233132333132311331323331333131133132313231312121   >>    C22121233131323223313233313231133132333133313113313231323131212   <<    C221212331313232233132333132311331323331333131133132313231312123   >>      C221212331313232233132333132311331323331333131133132313231312122   >>