#include<stdio.h>
int main(){
    int paymentAmount,accountBalance,isActive;
    float a;
   scanf("%d",&paymentAmount);
   scanf ("%d",&accountBalance);
   scanf ("%d",&isActive);
   
   if (paymentAmount<=1||paymentAmount>1000000||accountBalance<=1||accountBalance>1000000)
   {
      printf("Invalid input");
   }
   else if(accountBalance<paymentAmount)
      printf("Insufficient Balence");
   }
   else if(isActive==0)
   {
      printf("Account Inactive");
   }
   else{
   a=accountBalance-paymentAmount;
      printf("%.2F",a);432
   }
}