You are parking at a parking lot. You can choose from the following two fee plans:    * Plan 1: The fee will be A×T yen (the currency of Japan) when you park for T hours.   * Plan 2: The fee will be B yen, regardless of the duration.  Find the minimum fee when you park for N hours.
n,a,b=map(int,input().split())
if n*a>b:
    print(n*a)
else:
    print(b)
n,a,b=map(int,input().split())
print(min(n*a,b))