C12121212311232322331313232233132333132333132233132333132331231   >>    C1212121231123232233131323223313233313233313223313233313233123   <<    C12121212311232322331313232233132333132333132233132333132331233   >>      C12121212311232322331313232233132333132333132233132333132331232   >>