C312111333131133131323331323133112313231323223313231333112211232322231   >>    C31211133313113313132333132313311231323132322331323133311221123232223   <<    C312111333131133131323331323133112313231323223313231333112211232322233   >>      C312111333131133131323331323133112313231323223313231333112211232322232   >>