C221212331313232233132333132311331323331333132333132313231232311   >>    C22121233131323223313233313231133132333133313233313231323123231   <<    C221212331313232233132333132311331323331333132333132313231232313   >>      C221212331313232233132333132311331323331333132333132313231232312   >>