#include<stdio.h>
int main()
{
    int paymentAmount,accountBalance,isActive;
    float remainingBalance;
    scanf("%d", &paymentAmount);
    scanf("%d", &accountBalance);
    scanf("%d", &isActive);
    if(paymentAmount>100000||paymentAmount<=1||accountBalance<=1||accountBalance>10000)
    {
        printf("Invalid input");
    }
    else if(paymentAmount>accountBalance)
     {
            printf("Insufficient Balance");
     }
     else if(isAction==0)
     {
         printf("Account Inactive");
     }
    else
     {
            remainingBalance=accountBalance-paymentAmount;
            printf("%.2f\n",remainingBalance);
     }
     return 0;
}