# Evgenii B. Rudnyi, http:/MatrixProgramming.com

import sys
if len(sys.argv) < 2:
	print 'Usage: mm dim1 dim2 dim3'
	print 'Please specify matrix dimensions'
	sys.exit()

from numpy import *
from time import *

dim1 = int(sys.argv[1])
if len(sys.argv) < 3:
	dim2 = dim1
else:
	dim2 = int(sys.argv[2])
if len(sys.argv) < 4:
	dim3 = dim1
else:
	dim3 = int(sys.argv[3])
A = matrix(random.rand(dim1,dim2))
B = matrix(random.rand(dim2,dim3))
start = clock()
C = A*B
finish = clock()
print 'time for','C'+str(shape(C)),'=','A'+str(shape(A)),'B'+str(shape(B)),'is', finish - start,'s'