C11111211113313112113313331333133313221333133313113313331322331333132313313231   >>    C1111121111331311211331333133313331322133313331311331333132233133313231331323   <<    C11111211113313112113313331333133313221333133313113313331322331333132313313233   >>      C11111211113313112113313331333133313221333133313113313331322331333132313313232   >>