C11111211113313112113313331333133313221333133313332112323223313231321   >>    C1111121111331311211331333133313331322133313331333211232322331323132   <<    C11111211113313112113313331333133313221333133313332112323223313231323   >>      C11111211113313112113313331333133313221333133313332112323223313231322   >>