C3132121111133313233121111331333133313331333133313331323133313132221   >>    C313212111113331323312111133133313331333133313331333132313331313222   <<    C3132121111133313233121111331333133313331333133313331323133313132223   >>      C3132121111133313233121111331333133313331333133313331323133313132222   >>