S = list(input())
op = "+-"
ans = -1000000000000

def myeval(s):
    t = ""
    for i in range(10):
        for j in range(len(s)):
            if (j == 0 or s[j - 1] in op) and s[j] == "0" and j != len(s) - 1 and s[j + 1] not in op:
                continue
            t += s[j]
        s = t
        t = ""
    return eval(s)
            
for i in range(len(S)):
    if not (S[0] in op or S[-1] in op):
        ans = max(ans, myeval("".join(S)))
    S = S[1:] + [S[0]]
print(ans)