python: m,n,r=map(int,input().split())

A=[[0 for a1 in range(n)] for a2 in range(m)]

B=[[0 for b1 in range(n)] for b2 in range(r)]

gp=[]

hp=[]

g=[]

h=[]

for a3 in range(m):

g1=input().split()

if len(g1)==n:

gp+=g1

for b3 in range(n):

h1=input().split()

if len(h1)==r:

hp+=h1

for a4 in gp:

g.append(int(a4))

for b4 in hp:

h.append(int(b4))

for k in range(len(g)):

A[k//n][k%n]=g[k]

for j in range(len(h)):

B[j%r][j//r]=h[j]

def v(x,y):

z=len(x)

v=0

for im in range(z):

t=x[im]*y[im]

v+=t

return v

AB=[[0 for c1 in range(r)] for c2 in range(m)]

for i in range(m):

for l in range(r):

AB[i][l]=v(A[i],B[l])

print(m,r)

p=''

for e in range(len(AB)):

for f in AB[e]:

p+=str(f)+' '

print(p)

p=''