нужна блок схема для кода питон

n = int(input())

m = int(input())

a = [0] * n

for i in range(n):

a[i] = [0] * m

print(a)

for i in range(n):

for j in range(m):

a[i][j] = int(input())

print(a)

k=0

for i in range(n):

for j in range(m):

k = k+1

if k%2== 0 and (i+j)%2 != 0 and a[i][j] >= -3 and a[i][j]<=5:

a[i][j] = 1

print(a)