#AnubhavBalodhi, Puzzling.SE, 7804, 23216, 314...
N=int(input())
for num in range(N):
for X in range(2,N-8):
if (8*((num*(num+1)-8*(X+3))))==(825*(num-4)):
print(X,num)
#BeDaBe(a)st
I0FudWJoYXZCYWxvZGhpLCBQdXp6bGluZy5TRSwgNzgwNCwgMjMyMTYsIDMxNC4uLgpOPWludChpbnB1dCgpKQoKZm9yIG51bSBpbiByYW5nZShOKToKCWZvciBYIGluIHJhbmdlKDIsTi04KToKCQlpZiAoOCooKG51bSoobnVtKzEpLTgqKFgrMykpKSk9PSg4MjUqKG51bS00KSk6CgkJCXByaW50KFgsbnVtKQoKI0JlRGFCZShhKXN0CQkJ