题解 | #ZOJ#

def zoj(s):

    z=[]
    o=[]
    j=[]
    for i in s:
        if i == 'Z':
            z.append('Z')          
        if i == 'O':         
            o.append('O')              
        if i == 'J':
            j.append('J')
            
    for i in range(len(s)):
        if i < len(z) and len(z) > 0:
            print("%c"%z[i],end='')
        if i < len(o) and len(o) > 0:
            print("%c"%o[i],end='')
        if i < len(j) and len(j) > 0:
            print("%c"%j[i],end='')
      

while True:
    try:
        s = input()
        zoj(s)
    except:
        break