int main(){
	int x, y, s;
	int i, j, n;
	float r1, r2;
	while(~scanf("%d %d %d", &x, &y, &s) && x | y | s){
		r1 = (float)x / 100 + 1;
		r2 = (float)y / 100 + 1;
		n = 0;
		for(i = 1, x = 0; i < 1000; i++){
			for(j = 1; j < 1000; j++){
				x = (int)(i * r1) + (int)(j * r1);
				y = (int)(i * r2) + (int)(j * r2);
				if(x == s){
					n = n < y ? y : n;
				}
			}
		}
		printf("%d\n", n);
	}
	return 0;
}