Probability of shuffling array

from random import shuffledef test(x,f,to_n=100000):    suc = 0    for i in xrange(0,to_n):        shuffle(x)        if f(x): suc+=1    return float(suc)/float(to_n)def one_got_same_color(a):    for i in range(0,len(a),2):        if a[i]==a[i+1]: return True    return False#The following will simulate what's the probability for the#first kid to recieve a red ball or a blue ball#print test([1,1,2,2,3,3,4,4],lambda x: x[0]==1 and x[1]==2)print test([1,1,2,2,3,3,4,4],one_got_same_color)