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