C111113331333132322331333133313331323133313233213133313331333131131211111122121   >>    C11111333133313232233133313331333132313331323321313331333133313113121111112212   <<    C111113331333132322331333133313331323133313233213133313331333131131211111122123   >>      C111113331333132322331333133313331323133313233213133313331333131131211111122122   >>