ABC-365 B - Second Best

def getInt():
    return int(input())
 
 
def getIntList():
    return list(map(int, input().split()))
 
 
def main():
    N = getInt()
    A = getIntList()
    B = sorted(A)
 
    print(A.index(B[N - 2]) + 1)
 
 
if __name__ == "__main__":
    main()