C111113331333132322331333133313331333132332133313231323132311311   >>    C11111333133313232233133313331333133313233213331323132313231131   <<    C111113331333132322331333133313331333132332133313231323132311313   >>      C111113331333132322331333133313331333132332133313231323132311312   >>