C11111211113313112113313331333133313331333132313331333133313222222331   >>    C1111121111331311211331333133313331333133313231333133313331322222233   <<    C11111211113313112113313331333133313331333132313331333133313222222333   >>      C11111211113313112113313331333133313331333132313331333133313222222332   >>