import sys
import string

inputs = sys.stdin.readline


def main():
    S = input()
    aP = [S]
    for i, s in enumerate(S):
        bP, aP = aP, []
        if s == 'l':
            for p in bP:
                aP.append(p)
                aP.append(p[:i] + '1' + p[i + 1:])
        elif s == 'o':
            for p in bP:
                aP.append(p)
                aP.append(p[:i] + '0' + p[i + 1:])
        elif s == 'a':
            for p in bP:
                aP.append(p)
                aP.append(p[:i] + '@' + p[i + 1:])
        elif s == 's':
            for p in bP:
                aP.append(p)
                aP.append(p[:i] + '$' + p[i + 1:])
        else:
            aP = bP[:]

    alp = string.ascii_lowercase
    ans = 0
    for s in aP:
        if '0' in s or '1' in s:
            if '@' in s or '$' in s:
                for al in alp:
                    if al in s:
                        ans += 1
                        break
    print(ans)


if __name__ == "__main__":
    main()