#include<stdio.h>
int main ()
  {
    int paymentAmount,accountBalance,isActive;
    if(scanf("%d",&paymentAmount) !=1||
    scanf("%d",&accountBalance) !=1||
    scanf("%d",&isActive) !=1)
    }
    printf("Invalid input");
    return 0;
   }
   if(isActive==0)
   {
     printf("Account Inactive");
   }
   else if(paymentAmount>accountBalance)
  {
     printf("Insufficient Balance");
  }
  else
  {
     float remainingBalance=accountBalance-paymentAmount;
     printf("%.2f",remaingBalance);
  }
   return 0;
  }