#include<stdio.h>
int main() {
    int paymentAmount,accountBalance,isActive;
    if(scanf("%d",&payment Amount) !=1 ||
    scanf("%d",&accountBalance)!=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';
}