#include<stdio.h>
int main(){
    int paymentAmount,accountBalance,isActive;
    int inputCount;
    inputCount=scanf("%d %d %d",&paymentAmount,&accountBalance,&isActive);
    if (inputCount!=3){
        prinf("Invalid input\n");
        return 0;
    }
    if(isActive==0){
        printf("Account Inactive\n");
    }
    else if(paymentAmount>accountBalance){
        printf("Insufficient Balance\n");
    }
    else if(isActive==1 && paymentAmount>=0 & accountBalance>=0){
        float remainingBalance=accountBalance-paymentAmount;
        printf("%.2f\n",remaingBalance);
    }
    else{
        printf("Invalid input\n");
    }
    return 0;
}