653 - Gizilch

[b3yours3lf]

I don't have any idea how to solve it.
Could someone tell me the algorithm?

Thanks in avance.

[titid_gede]

i tried using brute force, it should be work, but WA in 0.2 Sec. i'm not sure whether the upper limit, since it is possible the upper limit 100!. or perhaps there are special cases, i do not know.

with love & light,

titid

[metaphysis]

I used signed int for score and got accepted.