C111123313331323113313331333133313331323133112113313232233112121
>>
C11112331333132311331333133313331333132313311211331323223311212
<<
C111123313331323113313331333133313331323133112113313232233112123
>>
C111123313331323113313331333133313331323133112113313232233112122
>>