#include<stdio.h>
int main()
{
    int pay,bal,active;
    sccanf("%d %d %d", &pay, &bal, &active);
    if(pay < 0 || pay > 100000 || bal < 0 || bal > 1000000 || (active |= 0 && active != 1)){
    printf("Invalid input");
    } else if (active == 0) {
    printf("Account Inactive");
    } else if (pay >bal) {
    printf("Insufficient Balance");
    } else {
    printf("%.2f", (float)(bal - pay));
    }
    return 0;
}