def kek(k, n):
    for i in range(0, n, 2):
        k = k [ :i] + "(" + k[i:]
    for i in range(n+1, n * 2, 2):
        k = k [ :i] + ")" + k[i:]
    return(k)

n = input()
k = len(n)
print("(", kek(n, k)[1:], sep = "")