def parkereses(N: int, E: list):
    olcso=0
    draga=0
    osszeg=0
    globalMax=100000000+1
    startPos=0
    E2=E.copy()
    E2.sort(reverse=True)
    while startPos<len(E) and E[startPos] == E2[startPos]:
        startPos= startPos+1
    while True:
        #maximum
        max=0
        maxPos=0
        for i in range(startPos, N):
            if E[i]<globalMax and E[i]>=max:
                max=E[i]
                maxPos=i
        if max>0:
            if max<osszeg/2:
                break
            #párkeresés
            max2=0
            maxPos2=0
            for i in range(startPos, maxPos):
                if E[i]>max2 and E[i]<max:
                    max2=E[i]
                    maxPos2=i
        if max==0:
            break
        if max2!=0 and max+max2>osszeg:
            osszeg=max+max2
            olcso=maxPos2
            draga=maxPos
        #print(max)
        globalMax=max
        if maxPos== startPos:
            startPos= startPos+1
    if olcso==0 and draga==0:
        return 0, 0
    return olcso+1, draga+1

def test():
    a, b=parkereses(10, [1, 9, 6, 2, 7, 2, 8, 4, 6, 3])
    print(a, b)
    assert 5==a
    assert 7==b

    a, b=parkereses(2, [1, 2])
    print(a, b)
    assert 1==a
    assert 2==b

    a, b=parkereses(2, [2, 1])
    print(a, b)
    assert 0==a
    assert 0==b

    a, b=parkereses(2, [2, 2])
    print(a, b)
    assert 0==a
    assert 0==b

    E=[]
    for i in range(0, 50000):
        E.append(1000000000)
    a, b=parkereses(50000, E)
    print(a, b)
    assert 0==a
    assert 0==b
    
    E=[]
    for i in range(50000, 0 ,-1):
        E.append(i)
    a, b=parkereses(50000, E)
    print(a, b)
    assert 0==a
    assert 0==b
    
    a, b=parkereses(4, [41, 100, 73, 74])
    print(a, b)
    assert 3==a
    assert 4==b
    
    a, b=parkereses(4, [47, 100, 73, 74])
    print(a, b)
    assert 1==a
    assert 2==b
    
    a, b=parkereses(8, [2, 100, 40, 71, 50, 71, 62, 63])
    print(a, b)
    assert 7==a
    assert 8==b
    
    a, b=parkereses(6, [5, 5, 5, 6, 5, 5])
    print(a, b)
    assert 1==a or 2==a or 3==a
    assert 4==b
        
    a, b=parkereses(6, [1 ,10, 2, 9, 3, 8])
    print(a, b)
    assert 1==a
    assert 2==b
        
    a, b=parkereses(5, [1, 100, 2, 3, 99])
    print(a, b)
    assert 4==a
    assert 5==b
        
    a, b=parkereses(6, [8, 1, 7, 2, 6, 9])
    print(a, b)
    assert 1==a
    assert 6==b
    
    a, b=parkereses(10, [1, 1, 1, 1, 2, 2, 2, 2, 2, 2])
    print(a, b)
    assert 1==a
    assert 10==b
        
    a, b=parkereses(9, [2, 2, 3, 3, 3, 1, 1, 1, 3])
    print(a, b)
    assert 1==a
    assert 9==b
        
    a, b=parkereses(10, [9, 1, 8, 2, 7, 3, 6, 4, 5, 10])
    print(a, b)
    assert 1==a
    assert 10==b
    
    a, b=parkereses(6, [3, 10, 4, 10, 5, 10])
    print(a, b)
    assert 5==a
    assert 6==b
    
    a, b=parkereses(8, [3, 10, 8, 10, 9, 10, 4, 10])
    print(a, b)
    assert 5==a
    assert 8==b
    
    a, b=parkereses(3, [5, 1, 2])
    print(a, b)
    assert 2==a
    assert 3==b


def futtatas():
    N=int(input())
    E=list(map(int,input().split()))
    a, b=parkereses(N, E)
    print(a, b)

#test()
futtatas()