#include<stdio.h>
int main() {
    int paymentAmount, accontBalance,isActive
    if (scanf("%d %d %d",&paymentAmount, &acountBalance, &isActive) != 3) {
        printf("Invalid input\n");
        return 0;
    }
    if (isActive == 0) {
        printf("Account Inactive\n");
    }
    else if (paymentAmount > accountBalance) {
        printf("Insufficient Balance\n");
    }
    else {
        float remaining = (float)(accountBalance - paymentAccount);
        printf("%.2f\n", remaining
    }
    
            
        }
    }