C3132121111133313233121111331333133313331333133313331333133313311232321321   >>    C313212111113331323312111133133313331333133313331333133313331331123232132   <<    C3132121111133313233121111331333133313331333133313331333133313311232321323   >>      C3132121111133313233121111331333133313331333133313331333133313311232321322   >>