C11111211113313112113313331333133313233313113121111331322331323133112131   >>    C1111121111331311211331333133313331323331311312111133132233132313311213   <<    C11111211113313112113313331333133313233313113121111331322331323133112133   >>      C11111211113313112113313331333133313233313113121111331322331323133112132   >>