C21111113313132322331323331323113313233313331323131313231323221   >>    C2111111331313232233132333132311331323331333132313131323132322   <<    C21111113313132322331323331323113313233313331323131313231323223   >>      C21111113313132322331323331323113313233313331323131313231323222   >>