C313212111133131211331333133313331333133311233133313121111133313331323223312121   >>    C31321211113313121133133313331333133313331123313331312111113331333132322331212   <<    C313212111133131211331333133313331333133311233133313121111133313331323223312123   >>      C313212111133131211331333133313331333133311233133313121111133313331323223312122   >>