#include<stdio.h>
int main(){
  int a,b,c,d,e,f,i,j,max;
  while(scanf("%d %d %d",&a,&b,&c),a||b||c){
    for(i=max=1;i*2<c;i++){
      d=c-i;
      for(j=d*100/(100+a);d>=(int)(j*(1+a/100.0));j++);
      j--;
      if((int)(j*(1+a/100.0))!=d)continue;
      e=j*(1+b/100.0);
      for(j=i*100/(100+a);i>=(int)(j*(1+a/100.0));j++);
      j--;
      if((int)(j*(1+a/100.0))!=i)continue;
      f=j*(1+b/100.0);
      if(max<e+f){max=e+f;/*printf("%d %d\n",max,i);*/}
    }
    printf("%d\n",max);
  }
  return 0;
}