C2123132222131133131121131211113313231322331333132331133132213232321   >>    C212313222213113313112113121111331323132233133313233113313221323232   <<    C2123132222131133131121131211113313231322331333132331133132213232323   >>      C2123132222131133131121131211113313231322331333132331133132213232322   >>