복제 하 다. 
Ascii Art
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_/...\ ( 0 0)
/::::::\ / \ /
|:::::::_ / / (_)
/--------+-+------ /
/ | | | |
o | _ |_| _ |
| |--- -+_+----| |
-- --
| |_ | |_
|____| |____|
___ .^""^.
_/...\ ( 0 0)
/::::::\ / \ /
|:::::::_ / / (_)
/--------+-+------ /
/ | | | |
o | _ |_| _ |
| |--- -+_+----| |
-- --
| |_ | |_
|____| |____|