pat_BL_1019

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2016/8/31
输入范围0－9999
ac code

# -*- coding: utf-8 -*-"""Created on Tue Aug 30 21:35:34 2016@author: hanzy"""def getnum(num):    big = sorted(num,reverse = True)    small = sorted(num)    bignumber = 1000*int(big[0])+100*int(big[1])+10*int(big[2])+int(big[3])    smallnumber = 1000*int(small[0])+100*int(small[1])+10*int(small[2])+int(small[3])    return bignumber,smallnumberif __name__ == "__main__":    info = raw_input()    flag = 0    info = str('%04d'%int(info))    num = (int(info[0]),int(info[1]),int(info[2]),int(info[3]))    big = sorted(num,reverse = True)    small = sorted(num)    bignumber = 1000*int(big[0])+100*int(big[1])+10*int(big[2])+int(big[3])    smallnumber = 1000*int(small[0])+100*int(small[1])+10*int(small[2])+int(small[3])    if bignumber == smallnumber:        print str('%04d'%bignumber) + " - " + str('%04d'%bignumber) + " = 0000"    else:        while(flag != 1):            if int(bignumber) - int(smallnumber) == 6174:                flag = 1            print str('%04d'%bignumber) + " - " + str('%04d'%smallnumber) + " = " + str('%04d'%(int(bignumber)-int(smallnumber)))            bignumber,smallnumber = getnum(str('%04d'%(int(bignumber)-int(smallnumber))))

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