#include <stdio.h>

int main(){
    int i,j,u[i],t[i],x[i],y[i],s[i],a,b,c[i],d[i],e[i],f[i],l[i];
    c[i]=a*(100+x[i])/100;
    d[i]=b*(100+x[i])/100;
    e[i]=a*(100+y[i])/100;
    f[i]=b*(100+y[i])/100;
    u[i]=c[i]+d[i];
    t[i]=e[i]+f[i];
    i=0;
    scanf("%d %d %d",&x[i],&y[i],&s[i]);
    while (!(x[i]==0&&y[i]==0&&s[i]==0)) {
        i++;
        scanf("%d %d %d",&x[i],&y[i],&s[i]);
    }
    for (j=0;j<i;j++) {
        l[j]=0;
        for (a=1;a<s[j];a++) {
            for (b=a;b<s[j];b++) {
                if (u[j]==s[j]) {
                    if (l[j]<t[j]) {
                        l[j]=t[j];
                    }
                }
            }
        }
        printf("%d\n",l[j]);
    }
    return 0;
}