#include<stdio.h>
int main(void){
  int x,y,s,a=0,b,h1=0,h2=0,sum=0,hh1,hh2;
  while(1){
  scanf("%d %d %d",&x,&y,&s);
  if(x==0&&y==0&&s==0)
    break;
  for(a=1;a<s;a++){
    b=s-a;
    sum=0;
    if((100*a)%(100+x)!=0){
    h1=a*100/(100+x)+1;
    }
    else
    h1=a*100/(100+x);
    if((b*100)%(100+x)!=0)
    h2=b*100/(100+x)+1;
    else
    h2=b*100/(100+x);
    hh1=h1*(100+x)/100;
    hh2=h2*(100+x)/100;
    if(hh1!=a){
      h1=0;
      h2=0;
    }
    if(hh2!=b){
      h1=0;
      h2=0;
    }
    h1=h1*(100+y)/100;
    h2=h2*(100+y)/100;
    if(sum<h1+h2){
      sum=h1+h2;
    }
  }
  printf("%d\n",sum);
  }
  return(0);
}