def main();
m,n=map(int,input().split())
A=[list(map(int,input().split())) for _in range(m)]
B=[list(map(int,input().split())) for _in range(n)]
for row_a,row_b in zip(A,B):
    summed=[a+b for a,b in zip(row_a,row_b)]
    print(" ",join(map(str,summed)))
if__name__=="__main__":
    main()