561 B | 561 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(a, b):
return f(b, a % b) if b else a
def solve():
n = ii()
mx = 0
for i in range(1, n):
a = i
b = n - i
if a >= b:
break
if f(a, b) == 1:
mx = i
print(mx, n - mx)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()