Print the following pattern for the given number of rows

Pattern for n=5

1    2   3    4   5
11   12  13   14  15
21   22  23   24  25
16   17  18   19  20
6    7    8   9   10

I have to print this pattern for n= any integer can anyone please help me with it. Thank you in advance

So this was my attempt:

n = int(input())
upper = int(n/2)+1
lower = n - upper 
start_i_lower = 0

for i in range(0, upper):
     if i != 0: 
     i = i + i
start = n*i + 1
end = start + n

for j in range(start, end):
    print(j, end =" ");
start_i_lower = i
print()

start_i_lower -= 1;

for i in range(0, lower):
    if(n%2 == 0):
      start_i_lower -= 1

start = n*(start_i_lower-1) + 1
end = start + n

for j in range(start, end):
    print(j, end =" ");
start_i_lower -= 1

print()