C3123223313331322121111331333133313121111331323133313332313233232113311   >>    C312322331333132212111133133313331312111133132313331333231323323211331   <<    C3123223313331322121111331333133313121111331323133313332313233232113313   >>      C3123223313331322121111331333133313121111331323133313332313233232113312   >>