#include <stdio.h>

int main(){
    int s,p=0,q;
    int x,y;
    int a,b;
    int i,j;
    int c,d;
    i=a*(100+x)/100;
    j=b*(100+x)/100;
  
    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 (i+j==s) {
                    c=a*(100+y)/100;
                    d=b*(100+y)/100;
                    q=c+d;
                    if (q>p) {p=q;
                    }
            
            }
        }
        printf("%d\n",p);
        scanf("%d %d %d",&x,&y,&s);
    }
    return 0;

}