C211111133131323223313233313231133132333133313231333132333132333221   >>    C21111113313132322331323331323113313233313331323133313233313233322   <<    C211111133131323223313233313231133132333133313231333132333132333223   >>      C211111133131323223313233313231133132333133313231333132333132333222   >>