PY
py
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n=int(input(''))
d,s,c,arr=n-1,1,1,[[0]*n for i in range (n)]
for i in range (d,-1,-1):
j=0
while True:
s,arr[j][i]=s+1,s
j,i=j+1,i+1
if i>d: break
for i in range(1,n):
j=0
while True:
s,arr[i][j]=s+1,s
j,i=j+1,i+1
if i>d: break
for i in range(n):
for j in range(n):
if arr[i][j]%10==arr[i][j]:
print(arr[i][j],end=" ")
elif arr[i][j]%10!=arr[i][j]:
print(arr[i][j],end=" ")
print("")
# author--<> SAYAN CHANDRA
# DIAGONAL PRINT
Enter to Rename, Shift+Enter to Preview
OUTPUT
Run