题解 | #简单密码#

mima = str(input())
zimu_l = 'abcdefghijklmnopqrstuvwxyz'
yinwen_l = list(zimu_l)
len_yinwen = len(yinwen_l)
dic = {'a':'2','b':'2','c':'2','d':'3','e':'3','f':'3','g':'4','h':'4','i':'4','j':'5','k':'5','l':'5','m':'6', 'n':'6','o':'6','p':'7','q':'7','r':'7','s':'7','t':'8','u':'8','v':'8','w':'9','x':'9','y':'9','z':'9'}
yinwen_u = list(zimu_l.upper())
list_mima = list(mima)
for i in range(len(list_mima)):
  # 注意转换的先后顺序，先转换小写字母
    if list_mima[i] in yinwen_l:
        list_mima[i] = dic[list_mima[i]]
    if list_mima[i] in yinwen_u:
        # 对于字母为z
        m = yinwen_u.index(list_mima[i])
        if m == len_yinwen - 1:
            m=0
        else:
            m = m + 1
        list_mima[i] = yinwen_l[m]
for i in list_mima:
    print(i,end='')