Merkkijono

#Kystyään aluksi luku
jana_pituus = input()

#Muutetaan luvuksi
jana_pituus = int(jana_pituus)

#Asetetaan aakkoset
alpha = "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p"

#Itse tehtävä
unit = ["a"]

#Adding the letters
addedLetters = 1
while addedLetters <= jana_pituus-1:
    addPlace = 0
    while addPlace <= len(unit):
        unit.insert(addPlace, alpha[addedLetters]) 
        addPlace = addPlace + 2
    addedLetters = addedLetters +1
    
#Muutetaan stringi 
string = "".join(unit)
print(string)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED