#include<stdio.h>

int main(void){
	
	int a,b,added,taxadded;
	int x,y,res;
	int ta,tb,t2a,t2b;
	
	while(1){
		res = 0;
		
		scanf(" %d %d %d",&x,&y,&added);
		
		if(x == 0 && y == 0 && added == 0){
			break;
		}
		
		for(a=1;a<100;a++){
			for(b=1;b<100;b++){
				ta = (int)(a * (100 + x)) / 100;
				tb = (int)(b * (100 + x)) / 100;
				t2a = (int)(a * (100 + y)) / 100;
				t2b = (int)(b * (100 + y)) / 100;
				if(((ta + tb) == added) && ((t2a + t2b) > res)){
					printf("now : %d %d %d %d\n",ta,tb,t2a,t2b);
					res = t2a + t2b;
				}
			}
		}
		
		printf("%d\n",res);
	}
	
	return(0);
}