C11111211113313112113313331333133313331333132212111133131211113313331333222331   >>    C1111121111331311211331333133313331333133313221211113313121111331333133322233   <<    C11111211113313112113313331333133313331333132212111133131211113313331333222333   >>      C11111211113313112113313331333133313331333132212111133131211113313331333222332   >>