C3132121111331312113313331333133313331331123231333132233133323221   >>    C313212111133131211331333133313331333133112323133313223313332322   <<    C3132121111331312113313331333133313331331123231333132233133323223   >>      C3132121111331312113313331333133313331331123231333132233133323222   >>