C11111211113313112113313331333133313133313233112111113331322222331   >>    C1111121111331311211331333133313331313331323311211111333132222233   <<    C11111211113313112113313331333133313133313233112111113331322222333   >>      C11111211113313112113313331333133313133313233112111113331322222332   >>