import itertools
def main():
    N = int(input())
    Total = int(input())
    A = [int(x) for x in input().split()]
    for Ops in itertools.product('+*', repeat=N-1):
        v = A[0]
        for i in range(N-1):
            if Ops[i] == '+':
                v += A[i+1]
            else:
                v *= A[i+1]
        if v == Total:
            print(''.join(Ops))
            exit()

if __name__ == '__main__':
    main()