// editor2
#include<stdio.h>
void main()
{
    int amount,balance,active;
    float inaccount;
    scanf("%d\n",&amount);
    scanf("%d\n",&balance);
    scanf("%d\n",&active);
    inaccount
    if(amount<=balance || active=1)
    {
        printf("%.2f",inaccount);
    }
    
}