ぎょうううじｋ - 経済統計練習帳

strx="avfff888ctgty"
 
x=[]
for s1 in strx:
    x.append(s1)
 
dic=[]
for x1 in x:
    h=0
    if x1 in dic:h=100
    if h<50:dic.append(x1)    
 
hasx=""
for x1 in x:
    m=dic.index(x1)
    hasx=hasx+str(m)
 
print(hasx)