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grid = []

for i in range(100):
    grid += [[i%2 for _ in range(100)]]

for i in range(100):
    grid[i][0] = 0

for i in range(100):
    grid[i][-1] = 1

grid[0][0] = 1
grid[0][-1] = 0

for row in grid:
    print(''.join(map(str, row)))