n = int(input())

start = ""

for s in str(n):
    if s == "7":
        start = start + "1"
    else:
        start = start + "0"

start = int(start)

for i in range(start, n):
    a = -start
    b = n - a
    
    if "7" not in str(a) and "7" not in str(b):
        print(a, b)
        
        break
    
    print(-1)