Don't use any libraries

matmult.py: Matrix multiplication. Two matrices will be provided via stdin, first with the number of rows and columns, followed by the matrix values, separated by a single space: Example input (a 2 x 3 matrix and a 3 x 1 matrix): 2 3 1.2 2.3 3.4 4.5 5.6 6.7 3 1 6.54 5.43 4.32 If the two matrices can be multiplied, print the resulting matrix in the same format. If they cannot be multiplied, print "invalid input". You can assume the input will always be formatted correctly, and no matrix will have 0 rows or 0 columns