int main(){
	int x, y, s, _s;
	int i, j, n, r1, r2;
	while(~scanf("%d %d %d", &x, &y, &s) && x | y | s){
		r1 = x + 100;
		r2 = y + 100;
		n = 0;
		_s = s * r1;
		for(i = 1; i <= _s; i++){
			for(j = i + 1; i + j <= _s; j++){
				x = (int)(i * r1 / 100) + (int)(j * r1 / 100);
				y = (int)(i * r2 / 100) + (int)(j * r2 / 100);
				if(x == s){
					if(n < y){
						n = y;
					}
				}
			}
		}
		printf("%d\n", n);
	}
	return 0;
}