C31231211111133131211113313331333133313332233133313331123313112131122112111   >>    C3123121111113313121111331333133313331333223313331333112331311213112211211   <<    C31231211111133131211113313331333133313332233133313331123313112131122112113   >>      C31231211111133131211113313331333133313332233133313331123313112131122112112   >>