#include <cstdio>
#include <iostream>
#include <complex>
#include <vector>
#include <utility>
#include <algorithm>
#include <cassert>
#include <queue>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <map>
using namespace std;
 
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
 
int main() {
  for (;;) {
    int X, Y, S;
    scanf("%d%d%d", &X, &Y, &S);
    if (X == 0 && Y == 0 && S == 0) return 0;
 
    int ans = 0;
    for (int s1 = 1; s1 <= S; ++s1) {
      for (int s2 = 1; s2 <= S; ++s2) {
        int x1 = s1 * (100 + X) / 100;
        int x2 = s2 * (100 + X) / 100;
        if (x1 + x2 == S) {
          int y1 = s1 * (100 + Y) / 100;
          int y2 = s2 * (100 + Y) / 100;
          ans = max(ans, y1 + y2);
        }
      }
    }
    printf("%d\n", ans);
  }
}
 

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5 8 105
8 5 105
1 2 24
99 98 24
12 13 26
1 22 23
1 13 201
13 16 112
2 24 50
1 82 61
1 84 125
1 99 999
99 1 999
98 99 999
1 99 11
99 1 12
0 0 0