C11111211113313112113313331333133313331333132313331333133112111113331323223231   >>    C1111121111331311211331333133313331333133313231333133313311211111333132322323   <<    C11111211113313112113313331333133313331333132313331333133112111113331323223233   >>      C11111211113313112113313331333133313331333132313331333133112111113331323223232   >>