I331323221313233313112113313331323133313223113313231323132313232212121   >>    I33132322131323331311211331333132313331322311331323132313231323221212   <<    I331323221313233313112113313331323133313223113313231323132313232212123   >>      I331323221313233313112113313331323133313223113313231323132313232212122   >>