#include<stdio.h>
void processpayment(int paymentamount,int accountbalance,int isactive){
    if(isactive==0){
        printf("Account Inactive\n");
    }
    else if(paymentamount>accountbalance){
        printf("Insufficient Balance\n");
    }
    else{
        float remainingbalance=accountbalance-paymentamount;
        printf("%.2f\n",remaningbalance);
    }

}
int main(){
    int paymentamount;
    int accountbalance;
    int isactive;
    scanf("%d", &paymentamount);
    scanf("%d", &accountbalance);
    scanf("%d", &isactive);
    processpayment(paymentamount,accountbalance,isactive);
    return 0;
}