#include<stdio.h>
int main()
{
int a,b,c; //a 고정비용 b 가변비용 c 판매비용
int ans; //손익분기 판매
scanf("%d %d %d",&a
,&b
,&c
);
if(b<=c)
{
}
ans=a/(b+c)+1;
}
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