from math import sqrt

n = int(input())

def is_square(num):
    s = int(sqrt(num) + 0.5)
    return s**2 == num

for k in range(10000):
    if is_square(n + k**2):
        print(int(sqrt(n+k**2) + 0.5), k)
        break
else:
    print("impossible")