# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
# input = sys.stdin.readline

A,B = map(int,input().split())
C,D = map(int,input().split())
print(A*C-B*D,A*D+B*C)