def f(x):
    return x - d[x]

X = int(input())
d = [0] * (X + 1)
for i in range(1, X + 1):
    for j in range(i, X + 1, i):
        d[j] += 1
d[0] = 10 ** 18

ans = []
pre = 10 ** 18
for i in range(1, X + 1):
    v = abs(f(i) - f(X - i))
    if v > pre:
        continue
    elif v == pre:
        ans.append(i)
    else:
        pre = v
        ans = []
        ans.append(i)

for a in ans:
    print(a, X - a)