C11111211113313112113313331333133313331333132313331333133313331323331311121221   >>    C1111121111331311211331333133313331333133313231333133313331333132333131112122   <<    C11111211113313112113313331333133313331333132313331333133313331323331311121223   >>      C11111211113313112113313331333133313331333132313331333133313331323331311121222   >>