I331323221313233313112113313331323132313331123313113313232212121
>>
I33132322131323331311211331333132313231333112331311331323221212
<<
I331323221313233313112113313331323132313331123313113313232212123
>>
I331323221313233313112113313331323132313331123313113313232212122
>>