C3123121111331133132313331333133313331333112113313331311331323223231   >>    C312312111133113313231333133313331333133311211331333131133132322323   <<    C3123121111331133132313331333133313331333112113313331311331323223233   >>      C3123121111331133132313331333133313331333112113313331311331323223232   >>