C313212111133131211331333133313331333133311233133313331312223232132311   >>    C31321211113313121133133313331333133313331123313331333131222323213231   <<    C313212111133131211331333133313331333133311233133313331312223232132313   >>      C313212111133131211331333133313331333133311233133313331312223232132312   >>