Osajono

text=raw_input()

text=list(text)

vastaus=0

x=0

lopputulos=0

kirjaimet={"A":0,"B":0,"C":0,"D":0,"E":0,"F":0,"G":0,"H":0,"I":0,"J":0,"K":0,"L":0,"M":0,"N":0,"O":0,"P":0,"Q":0,"R":0,"S":0,"T":0,"U":0,"V":0,"W":0,"X":0,"Y":0,"Z":0}
for i in text:
    if i in kirjaimet:
        kirjaimet[str(i)]+=1

for i in kirjaimet:
    x=0
    if kirjaimet[str(i)]!=0:
        x+=(kirjaimet[str(i)]**2+kirjaimet[str(i)])/2
        lopputulos+=x

print lopputulos

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED