C111123313331323113313331333133313331323133112113313232213232322221
>>
C11112331333132311331333133313331333132313311211331323221323232222
<<
C111123313331323113313331333133313331323133112113313232213232322223
>>
C111123313331323113313331333133313331323133112113313232213232322222
>>