C13132313123113313223313133313231133132333132322223313231333132312131   >>    C1313231312311331322331313331323113313233313232222331323133313231213   <<    C13132313123113313223313133313231133132333132322223313231333132312133   >>      C13132313123113313223313133313231133132333132322223313231333132312132   >>