#include <stdio.h>

int main(){
    int s,p=0;
    int x,y;
    int a,b;
  
    scanf("%d %d %d",&x,&y,&s);
    while (x==0&&y==0&&s==0) {
        for(a=0;a<s;a++) {
            for (b=a;b<s;b++){
                if (a*(1+x/100)+(b*1+x/100)==s) {
                    if (a*(1+y/100)+(b*1+y/100)>p) {p=a*(1+x/100)+(b*1+x/100);
                    }
                }
            
            }
        }
        printf("%d\n",p);
        scanf("%d %d %d",&x,&y,&s);
    }
    return 0;

}