C1111233131211111211113313331312111133112113121111331322331323222331   >>    C111123313121111121111331333131211113311211312111133132233132322233   <<    C1111233131211111211113313331312111133112113121111331322331323222333   >>      C1111233131211111211113313331312111133112113121111331322331323222332   >>