C11111333133313232233133313331333133313231312331323132322123233311   >>    C1111133313331323223313331333133313331323131233132313232212323331   <<    C11111333133313232233133313331333133313231312331323132322123233313   >>      C11111333133313232233133313331333133313231312331323132322123233312   >>