C211111133131323223313233313231133132333133313231333132211211311   >>    C21111113313132322331323331323113313233313331323133313221121131   <<    C211111133131323223313233313231133132333133313231333132211211313   >>      C211111133131323223313233313231133132333133313231333132211211312   >>