#ten_zero = [0] * 10 # [0,0,0,0,0,0,0,0,0,0]
#print(ten_zero)

#grid = [ten_zero] * 100
#print(grid)

#grid[1][2] = 9999
#print(grid)

grid = []
for _ in range(100):
    grid.append([0] * 10)

grid[1][2] = 9999
print(grid)

grid_new = [[0] * 10 for _ in range(100)]
grid_new[1][2] = 9999
print(grid_new)