#!/usr/bin/env python3

def checksum(l):
    double = 0
    triple = 0
    for item in l:
        d, t = count_duplicate(item)
        double += d
        triple += t
    return double * triple

def count_duplicate(item):
    double = 0
    triple = 0
    c = dict()
    for i in item:
        if i in c:
            c[i] += 1
        else:
            c[i] = 1
    for k,v in c.items():
        if v == 2:
            double =11
        if v == 3:
            triple = 1
    return (double, triple)

if __name__ == '__main__':
    l = sys.stdin.readlines()
    print(checksum(l))