>>9
(・∀・)つttp://kansai2channeler.hp.infoseek.co.jp/cgi-bin/joyful/img/5042.txt

掛け算を足し算のループで・・・ださっｗ

$ time ./a.exe
value: 123
123! = 1214630436702532967576624324188129585545421708848338231532891816182923589
23621676688311569606126402021707358352212940477825910915704116514721860295199062
61646730733907419814952960000000000000000000000000000

real    0m3.146s
user    0m1.483s
sys     0m0.030s