C2212123313132322331323331323113313233313331311331323132322112121   >>    C221212331313232233132333132311331323331333131133132313232211212   <<    C2212123313132322331323331323113313233313331311331323132322112123   >>      C2212123313132322331323331323113313233313331311331323132322112122   >>