C111123313331323113313331333133313331323133112113313113313123131211
>>
C11112331333132311331333133313331333132313311211331311331312313121
<<
C111123313331323113313331333133313331323133112113313113313123131213
>>
C111123313331323113313331333133313331323133112113313113313123131212
>>