C11111333133313232233133313331333133313331313331333132322331312321   >>    C1111133313331323223313331333133313331333131333133313232233131232   <<    C11111333133313232233133313331333133313331313331333132322331312323   >>      C11111333133313232233133313331333133313331313331333132322331312322   >>