C3132121111331312113313331333133313331333132313331333133313223313231323312221   >>    C313212111133131211331333133313331333133313231333133313331322331323132331222   <<    C3132121111331312113313331333133313331333132313331333133313223313231323312223   >>      C3132121111331312113313331333133313331333132313331333133313223313231323312222   >>