C13132313123113313223313133313231133132333132322223313231333132322113231   >>    C1313231312311331322331313331323113313233313232222331323133313232211323   <<    C13132313123113313223313133313231133132333132322223313231333132322113233   >>      C13132313123113313223313133313231133132333132322223313231333132322113232   >>