#include <stdio.h>

int main(void)
{
  int x, y, s, t, T = 0, tmax = 0, u, U = 0, T1 = 0 , U1 = 0;
  int wa = 0;
  while(1){
    scanf("%d %d %d",&x, &y, &s);
    if(x == 0 && y == 0 && s == 0){
      break;
    }
  
    tmax = 0;
  
    for(t = 1 ; t < s ; t++){	
      for(u = 1 ; u < s ; u++){ 
	T = (t * (100 + x))/100;
	U = (u * (100 + x))/100;
	
	if((T + U) == s){
	  T1 = (t*(100 + y))/100;
	  U1 = (u*(100 + y))/100;
	  if((T1 + U1) > tmax){
	    tmax = (T1 + U1);
	  }
	}
      }
    }
    
    printf("%d\n",tmax);
  }
}