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