#include <stdio.h>
int main (){
  int x,y,s,sum1,sum2,i,j,max,a[1000],b[1000],count;
  
  while(1){
    
    scanf("%d%d%d",&x,&y,&s);
    if(x==0 && y==0 && s==0)break;
    
    count=0;
    
    for(i=1;i<=s;i++){
      for(j=1;j<=s;j++){
	
	sum1 = (int)((double)i*(100+x)/100) + (int)((double)j*(100+x)/100);
	if(s==sum1){
	  a[count]=i;
	  b[count]=j;
	  count++;
	}
      }
    }
    max=0;
    
    for(i=0;i<count;i++){
      sum2 = (int)((double)a[i]*(100+y)/100) + (int)((double)b[i]*(100+y)/100);
      if(max<sum2){
	  max=sum2;
	}
    }
    
    printf("%d\n",max);
      
  }
  
  
  return 0;
}