A, B = map(int, input().split())
try:
    a = int(str(abs(A))[1:])
    b = int(str(abs(B))[1:])
except:
    a = 123
    b = 123

if a == b == 0 and str(A)[-2:] == str(B)[-2:] == "00":
    ans = str(A * B)
    print(ans[:-1])
else:
    ans = A * B
    if len(str(abs(ans))) > 8:
        print("E")
    else:
        print(ans)