C313212111133131211331333133313331333133322331323133313233223331   >>    C31321211113313121133133313331333133313332233132313331323322333   <<    C313212111133131211331333133313331333133322331323133313233223333   >>      C313212111133131211331333133313331333133322331323133313233223332   >>