C111113331333132322331333133313331333132332133313231333223311211331   >>    C11111333133313232233133313331333133313233213331323133322331121133   <<    C111113331333132322331333133313331333132332133313231333223311211333   >>      C111113331333132322331333133313331333132332133313231333223311211332   >>