C2123132222131133131121131211113313231322331333132331133132322121   >>    C212313222213113313112113121111331323132233133313233113313232212   <<    C2123132222131133131121131211113313231322331333132331133132322123   >>      C2123132222131133131121131211113313231322331333132331133132322122   >>