matrix part 1 in python for beginners

1.If you want to talk with me contact me on callme4 app

I am praveen and i am a ccbp student.
i was explained in this video about matrix part1.

#nxtwave
#nxtwaveccbp
#ccbp4.O
#idp
Basic concepts of matrix
matrix part 2
praveen the professor #nxtwave

matrices

[baaluk]

what an explanation brother....meeru yenduku total python course cheyyakudadu....plz okasari think cheyandi...telugu lo chala clear ga cheptunnaru...thank you ....

[prasadbesi]

Now I clearly understood bro..great explanation 👏

[vamshikrishnareddy]

Nxtwave la Pattern printing problems chysinolaki antha hard am kadu

[SrihanumanFarms]

Thank you so much bro.. Explanation very good and easily understood.Waiting for part - 2

[PraveenKumar-weku]

Now clearly I understood because, its look like a classroom explanation. thank you brother if don't mind can you explain more videos on python and javascript

[hemanth]

hatsoff anna chala baaga cheptunnaru idp L1 pass avvalante em em topicss prepare kavalo chepandi anna meeru

[yedukondalutirumani]

thank you bro devudu la dhimapav matrix video

[dbsrohan]

excellent anna same matrix meede kasta modification tho oka question vachindi naku nqt exam lo adi nenu cheyyalekapoya ee video naku munde doriki undalsindi but naku ardamaindi matrix ippudu

[kalyanrambhupathi]

Matrix lo different problems pai videos cheyandi bor

[rekasuresh]

bro try to upload part2 and part3 as early as possible...your explanation awesome

[manjunathmanjunath]

def perimeter_of_matrix(matrix):
rows=len(matrix)
cols=len(matrix[0])
perimeter=0
for i in range(rows):
for j in range(cols):
if matrix[i][j] == 1:
perimeter+=4
if i > 0 and matrix[i-1][j] == 1:
perimeter-=2
if j and matrix[i][j-1] == 1:
perimeter-=2
return perimeter
m=int(input())
n=int(input())
matrix=[]
for i in range(m):
row=[int(x) for x in input().split()]
matrix.append(row)
print("perimeter of matrix:", perimeter_of_matrix(matrix)
Ikada naku syntax error vastundi line 21 ani antundi bro mistake m i untadi