#include<stdio.h>
int main()
{
    int a,b,c;
    if(scanf("%d %d %d",&a,&b,&c)!=3)
    {
        printf("Invalid input");
        return 0;
    }
     if(a<0 || a>1000000 || b<0 || b>1000000 || (c!=0&&c!=1))
     {
         printf("Invalid input");
         return 0;
     }
     if(c=0)
     {
         printf("Account Inactive\n");
         return 0;
     }
      if(a>b)
      {
          printf("Insufficient Balance");
          return 0;
      }
      float RemainingBalance=b-a;
      printf("%.2f\n",Remaining                             Balance);
 return 0;
}