#include<stdio.h>
int main(void)
{
	int x,y,s,i,j,max,p1,p2,p;
	
	while(scanf("%d %d %d",&x,&y,&s))
	{
		if(x==0 && y==0 && s==0)
		{
			break;
		}
		
		max = 0;
		
		for(i=1;i<1001;i++)
		{
			for(j=1;j<1001;j++)
			{
				p1 = i*(100+x)/100;
				p2 = j*(100+x)/100;
				p = p1 + p2;
				
				if(p==s)
				{
			    	p1 = i*(100+y)/100;
		    		p2 = j*(100+y)/100;
					p = p1 + p2;
					
				    if(p>=max) max = p;
				}
			}
		}
		
		printf("%d\n",max);
	}
	
	return 0;
}
		
				
