#include<stdio.h>
int main()
{
    int pay,bal,active;
    scanf("%d %d %d", &pay, &bal, &active);
    if(pay < 0 || pay > 100000 || bal < 0 || bal > 100000 || (active !=0 && active !=1)){
    printf("Invalid input");
    }
    else if (active == 0) {
    printf("Account Inactive");
    }
    else if (pay > bal) {
        printf("Insufficient Balance");
    } else {
       printf("%.2f", result)(bal - pay));
    }
    return 0;
}