n,m=input().split() n,m=int(n),int(m) a=[] for x in range(n): tmp=input().split() a.append(tmp) b=[] for x in range(n): tmp=input().split() b.append(tmp) for i in range(n): for j in range(m): a[i][j]=int(a[i][j])+int(b[i][j]) for i in range(n): for j in range(m): print(a[i][j],end=' ') print()