def calc(A,B):
    def _(num):
        n=num//100
        return 1<=abs(n)<=9 and not num%100
    ans=str(A*B)
    minus=ans[0]=="-"
    if minus:
        ans=ans[1:]
    if _(A) and _(B):
        if ans[-1]=="0":
            ans=ans[:-1]
    else:
        if len(ans)>8:
            ans="E"
    if ans!="E" and minus:
        ans="-"+ans
    return ans

A,B = map(int,input().split())
print(calc(A,B))