C11111211113313112113313331333133313331312113313331323132233231   >>    C1111121111331311211331333133313331333131211331333132313223323   <<    C11111211113313112113313331333133313331312113313331323132233233   >>      C11111211113313112113313331333133313331312113313331323132233232   >>