C3132121111133313233121111331333133313331333133313331331121331321   >>    C313212111113331323312111133133313331333133313331333133112133132   <<    C3132121111133313233121111331333133313331333133313331331121331323   >>      C3132121111133313233121111331333133313331333133313331331121331322   >>