X = int(input())

if X == 2:
    print("1 1")
    exit(0)

L = [1 for k in range(X+1)]
for k in range(2,X+1):
    l = 1
    while k*l < X+1:
        L[k*l] += 1
        l += 1

B = [0 for k in range(X+1)]
for k in range(1,X+1):
    B[k] = k-L[k]

t = 10**9
for k in range(1,X+1):
    t = min(t,abs(B[k]-B[X-k]))

ans = []
for k in range(1,X+1):
    if abs(B[k]-B[X-k]) == t:
        ans.append([k,X-k])

for e in ans:
    print(*e)