1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
def pred(i, j, n):
    if i == 0:
        return j == 0
    if i % 2:
        return j > 0
    return j == n - 1

n = 100
for i in range(n):
    for j in range(n):
        print(1 if pred(i, j, n) else 0, end='')
    print()