# b_product.py

# b_product.py

from itertools import product

alpha = '123'
for s in product(alpha, repeat=3):
    output = ''.join(s)
    print output,

'''111 112 113 121 122 123 131 132 133 211 212 213 221 222 223 231 232 233 311 312 313 321 322 323 331 332 333'''