C11111211113313112113313331333133313221333133313113313223313233231333112321   >>    C1111121111331311211331333133313331322133313331311331322331323323133311232   <<    C11111211113313112113313331333133313221333133313113313223313233231333112323   >>      C11111211113313112113313331333133313221333133313113313223313233231333112322   >>