#include<stdio.h>

int main(){
	int i=0,j=0;
	int x=1,y=1,s=1;
	int max=0;
	int s11=0,s12=0,s21=0,s22=0;
	
	while(x != 0 && y != 0 && s != 0){
		scanf("%d %d %d",&x,&y,&s);
		for(i=1;i<1000;i++){
			s11 = i;
			s12 = (double)s11*((100.0+(double)x)/100.0);
			for(j=i;j<1000;j++){
				s21 = j;
				s22 = (double)s21*((100.0+(double)x)/100.0);
				if(s12+s22 >= s)
					break;
			}
			
			if(s12+s22 == s){
				s12 = (double)s11*((100.0+(double)y)/100.0);
				s22 = (double)s21*((100.0+(double)y)/100.0);
				
				if(s12+s22 > max)
					max = s12+s22;
			}
			
			if(s11 > s)
				break;
			
		}
		if(x == 0 && y == 0 && s == 0)
			break;
		printf("%d\n",max);
		max =0;
	}
}