#include<stdio.h>
 
int main(void){
    int i,j;
    int x,y,s;
 
    int p; 
    int max = 0;
 
    while(1){
        scanf("%d %d %d",&x,&y,&s);
        if(x == 0 && y == 0 && s == 0)break;
 
        for(i=1;i<1000;i++){
            for(j=1;j<1000;j++){
                if(i*(100+x)/100 + j*(100+x)/100 == s){
                    p = i*(100+y)/100 + j*(100+y)/100;
                    //printf("%d %d %lf %lf %d %lf %lf %d\n",i,j,i*x,j*x,(int)(i*x)+(int)(j*x),(i*y),(j*y),p);
                    if(max < p){
                        max = p;
                    }
                }
            }
        }
 
        printf("%d\n",max);
        max = 0;
 
    }
 
    return 0;
}
