a=[] n,m=input().split() n,m=int(n),int(m) for x in range(n): n,m=input().split() a.append(t) for x in range(n): for y in range(n): if x==y or a+y==n-1: a[x][y]=a[x][y]+m for x in range(n): for y in range(n): print("{:>5}".format(a[x][y]),end="") print()