C111123313331323113313331333133313331323131211111133132322121211211   >>    C11112331333132311331333133313331333132313121111113313232212121121   <<    C111123313331323113313331333133313331323131211111133132322121211213   >>      C111123313331323113313331333133313331323131211111133132322121211212   >>