for s in itertools.product('0123456789', ('+', '-', '*', '/', '**'), '0123456789', ('+', '-', '*', '/', '**')):
    try:
        e = '2' + ''.join(s) + '5'
        if eval(e) == 2015:
            print(s)
    except Exception:
        pass
for s in itertools.product(('+', '-', '*', '/', '**'), '0123456789', ('+', '-', '*', '/', '**'), '0123456789'):
    try:
        e = '2' + ''.join(s) + '5.0'
        if abs(eval(e) - 2015) < 0.01:
            print(e)
    except Exception:
        pass