#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(paymentamount < 0 || accountbalance < 0||
    (isactive != 0 && isactive !=1)) {
        printf("Invalid input ");
        return 0;
    }
    if(isactive ==0) {
        printf("account inactive");
        return 0;
    }
    if(paymentamount > accountbalance){
        printf("insufficient balance");
        return 0;
    }
    double remainingbalance =(double)accountbalance - (double)paymentamount;
    printf("%.2f,remainingbalance");
    return 0;
}