题解 | #简单密码#

nums=input()
res=''
changes={"A":"b","B":"c","C":"d","D":"e","E":"f",
         "F":"g","G":"h","H":"i","I":"j","J":"k",
         "K":"l","L":"m","M":"n","N":"o","O":"p",
         "P":"q","Q":"r","R":"s","S":"t","T":"u",
         "U":"v","V":"w","W":"x","X":"y","Y":"z",
         "Z":"a"}
for i in nums:
    if i in "abc":
        res+="2"
    elif i in "def":
        res+="3"
    elif i in "ghi":
        res+="4"
    elif i in "jkl":
        res+="5"
    elif i in "mno":
        res+="6"
    elif i in "pqrs":
        res+="7"
    elif i in "tuv":
        res+="8"
    elif i in "wxyz":
        res+="9"
    elif i in changes.keys():
        res+=changes[i]
    else:
        res+=i
print(res)