C11111211113313112113313331333133313331333132212111133131112131   >>    C1111121111331311211331333133313331333133313221211113313111213   <<    C11111211113313112113313331333133313331333132212111133131112133   >>      C11111211113313112113313331333133313331333132212111133131112132   >>