# -*- coding: utf-8 -*-
"""
Created on Wed Mar  6 22:33:31 2019

@author: Ham

HackerRanch Challenge: Eye and Identity

identity

The identity tool returns an identity array.
An identity array is a square matrix
with all the main diagonal elements as 1 and the rest as 0.
The default type of elements is float.

import numpy
print numpy.identity(3) #3 is for  dimension 3 X 3

#Output
[[ 1.  0.  0.]
 [ 0.  1.  0.]
 [ 0.  0.  1.]]

eye

The eye tool returns a 2-D array with 1's as the diagonal and 0's elsewhere.
The diagonal can be main, upper or lower depending on the optional parameter k.
A positive k is for the upper diagonal, a negative k is for the lower,
and a k=0 (default) is for the main diagonal.

import numpy
print numpy.eye(8, 7, k = 1)    # 8 X 7 Dimensional array with first upper diagonal 1.

#Output
[[ 0.  1.  0.  0.  0.  0.  0.]
 [ 0.  0.  1.  0.  0.  0.  0.]
 [ 0.  0.  0.  1.  0.  0.  0.]
 [ 0.  0.  0.  0.  1.  0.  0.]
 [ 0.  0.  0.  0.  0.  1.  0.]
 [ 0.  0.  0.  0.  0.  0.  1.]
 [ 0.  0.  0.  0.  0.  0.  0.]
 [ 0.  0.  0.  0.  0.  0.  0.]]

print numpy.eye(8, 7, k = -2)   # 8 X 7 Dimensional array with second lower diagonal 1.

Task

Your task is to print an array of size NxM
with its main diagonal elements as 1's and 0's everywhere else.

Input Format

A single line containing the space separated values of N and M.
N denotes the rows.
M denotes the columns.

Output Format

Print the desired NxM array.

Sample Input

3 3

Sample Output

[[ 1.  0.  0.]
 [ 0.  1.  0.]
 [ 0.  0.  1.]]

"""

import numpy

if __name__ == '__main__':
    numpy.set_printoptions(legacy='1.13')
    # The legacy= stuff above came from the Discussion forum
    #n, m = map(int, input().strip().split())
    print(numpy.eye(*map(int, input().strip().split())))
