C11111211113313112113313331333133313331312322121111133313331323212332221   >>    C1111121111331311211331333133313331333131232212111113331333132321233222   <<    C11111211113313112113313331333133313331312322121111133313331323212332223   >>      C11111211113313112113313331333133313331312322121111133313331323212332222   >>