1. feladat:

n=input("nev: ")

nev=n.split()

a=nev[0][0]

b=nev[1][0]

print(a+b)

2. feladat:

v=0

k=0

n=input("nev: ")

nev=n.split()


for x in nev[0]:
    
    v+=1


for x in nev[1]:
    
    k+=1
    

print("vezeteknev:",v)

print("keresztenv:",k)

3. feladat:

k=""
i=input("nev: ")
for x in i:
    
    if  x=='z':
        k+='a'
    
    elif x=="Z":
        k+='A'
       
    elif x.isalpha():  
        k+=chr(ord(x)+1)  
    
    elif x==" ":
         k+=" "   
print(k)