C2212123313132322331323331323113313233313331311331323331123231121   >>    C221212331313232233132333132311331323331333131133132333112323112   <<    C2212123313132322331323331323113313233313331311331323331123231123   >>      C2212123313132322331323331323113313233313331311331323331123231122   >>