enum{M=1500};
N,A[M],B[M],h,k,i,x[M],y[M],t;
main(z){
	for(scanf("%d",&N);i<N;)scanf("%d",A+i++);for(;~scanf("%d",B+--i););
	for(z=h=N;h--;z>t?z=t:0){
		for(i=N;i--;)x[i]=A[i]<<11;
		for(k=N;k--;x[t]+=B[(h+k)%N]/2<<11|1)for(i=N;i--;)x[t]>x[i]?t=i:0;
		for(t=i=0;i<N;t<k?t=k:0)k=x[i++]&2047;
	}
	printf("%d",z);exit(0);
}