#include<stdio.h>
int main()
{
    float paymentAmount,accountAmount;
    int isActive;
    scanf("%f",&paymentAmount);
     scanf("%f",&accountAmount);
      scanf("%d",&isActive);
    
    if(paymeAmount<0 || paymeAmount> 1000000 || accountBalance <0 || accountBalance >1000000 || (isActive <=0 && isActive <=1))
   { 
         printf("Invalid input");
        
        
   }
     if(isActive==0)
     {
    printf("Account Inactive");
        
    }
    else if(paymentAmount > accountBalance)
    {
     printf("Insufficient Balance");
    }
    else
    {
        float remainingBalance = accountBalance - paymentAmount;
        printf("%.2f",remainingBalance);
    }
    return 0;
}