DouKaku?

def komachi():
    num = range(1,10)
    ope = ["",".0+",".0-",".0*",".0/"]
    c = 1
    for x in xrange(5**8):
        formula = str(num[0])
        for n in range(1,9):
            formula += ope[x%5] + str(num[n])
            x /= 5
        if eval(formula) == 100:
           print formula,c
           c += 1
           

komachi()