C3132121111133313233121111331333133313331333133313231333133322131   >>    C313212111113331323312111133133313331333133313331323133313332213   <<    C3132121111133313233121111331333133313331333133313231333133322133   >>      C3132121111133313233121111331333133313331333133313231333133322132   >>