A, B = input().split()
if A.count("0") == len(A) - 1 - (1 if A[0] == "-" else 0) and B.count("0") == len(B) - 1 - (1 if B[0] == "-" else 0):
    print(int(A) * int(B))
else:
    ans = (int(A) * int(B))
    if abs(ans) >= 100000000:
        print("E")
    else:
        print(ans)