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