#include<stdio.h>
int main(){
    int paymentAmount,accountbalance,isActive;
    if(scanf("%d",&paymentAmount) !=1|| 
    scanf("%d",&accountbalannce) !=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",remainingBalance);
    }
    return 0;
}