C211111133131323223313233313231133132333133313231333132333132313231231   >>    C21111113313132322331323331323113313233313331323133313233313231323123   <<    C211111133131323223313233313231133132333133313231333132333132313231233   >>      C211111133131323223313233313231133132333133313231333132333132313231232   >>