C13132313123113313223313133313231133132333132322223313232222131   >>    C1313231312311331322331313331323113313233313232222331323222213   <<    C13132313123113313223313133313231133132333132322223313232222133   >>      C13132313123113313223313133313231133132333132322223313232222132   >>