// editor2
#include<stdio.h>
int main()
{
 float pa, acb;
 int isActive;
 if(scanf("%f %f %d", &pa, &acb, &isActive)!=3){
     printf("Invalid input");
     return 0;
 }
 if(pa<0||pa>1000000||acb<0||a)
 printf("Invalid input");
 return 0;
}
if(isActive==0){
    printf("Account Inactive");
}else if(pa>acb){
    printf("Insufficent Balance");
}else{
    float remainingBalance=acb-pa;
    printf("%.2f",remainingBalance);
}
return 0;
}