- case=int(input()) 
- for i in range(case): 
-     n=int(input()) 
-     l=[] 
-     r=[] 
-     lm=[] 
-     l=list(map(int,raw_input().split())) 
-     r=list(map(int,raw_input().split())) 
-   
-     for j in range(n): 
-         lm.append(l[j]*r[j]) 
-         print lm 
-   
-     if lm.count(max(lm))>1: 
-     	if r.count(max(r))>1: 
-     		print lm.index(lm[0])+1 
-     	else: 
-     		print r.index(max(r))+1 
-     else: 
-     	print lm.index(max(lm))+1   
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