// editor2
#include<stdio.h>
int main(){
    int pay, bal, act;
   if( scanf("%d %d %d",&pay,&bal,&act) !=3){
       printf("Invalid input\n");
       return 1;
   }
   if(active ==0){
       printf("Account Inactive\n");
   }
   else if(pay>bal){
       printf("Insufficient Balance\n");
   }
   else{
    float remainingbalance =(float)bal - pay:
    printf("%.2f\n",remainingbalance);
   }
   return 0;
    
}