#include <stdio.h>
#include <conio.h>

int main()
{
    int N,X,Z,pc;
    float Y;
    printf("Nhap so nguoi trong thanh pho: ");
    scanf("%d",&N);
    printf("Nhap vao so wizard: ");
    scanf("%d",&X);
    printf("Nhap so phan tram nguoi tham gia: ");
    scanf("%d",&pc);
    Y=(float)(N*pc)/100;
    Z=Y;
    if(Y-Z>0)
    Z=Y+1;
    pc=Z-X;
    printf("%d",pc);

return 0;
}