#include<stdio.h>
int main()
{
    float paymentAmount, accountBalance;
    int isActive;
    if(scanf("%f %f %d",&paymentAmount,&accountBalance,&isActive)!==3){
        printf("Invalid input");
        return 0;
    }
        if(isActive != 1)
        {
            printf("Account inactive");
        }
        else if(paymentAmount > accountBalance)
        {
            printf("Insufficient Balance");
            return 0;
        }
    accountBalance <= paymentAmount;
    printf("%0.2f", accountBalance);
    
    return 0;
}