N=int(input())
L=[i for i in range(N+1)]
for i in range(2,N+1):
    for j in range(1,N+1):
        if i*j<=N:
            L[i*j]-=1
#print(L)
SA=10**9
ans=[]
for i in range(1,N+1):
    if abs(L[i]-L[N-i])<SA:
        SA=abs(L[i]-L[N-i])
        ans=[[i,N-i]]
    elif abs(L[i]-L[N-i])==SA:
        ans.append([i,N-i])
for i in ans:
    print(*i)