#include <bits/stdc++.h>

//#include <atcoder/all>
#define For(i, a, b) for (int(i) = (int)(a); (i) < (int)(b); ++(i))
#define rFor(i, a, b) for (int(i) = (int)(a)-1; (i) >= (int)(b); --(i))
#define rep(i, n) For((i), 0, (n))
#define rrep(i, n) rFor((i), (n), 0)
#define fi first
#define se second
using namespace std;
typedef long long lint;
typedef unsigned long long ulint;
typedef pair<int, int> pii;
typedef pair<lint, lint> pll;
template <class T>
bool chmax(T &a, const T &b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
template <class T>
bool chmin(T &a, const T &b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template <class T>
T div_floor(T a, T b) {
    if (b < 0) a *= -1, b *= -1;
    return a >= 0 ? a / b : (a + 1) / b - 1;
}
template <class T>
T div_ceil(T a, T b) {
    if (b < 0) a *= -1, b *= -1;
    return a > 0 ? (a - 1) / b + 1 : a / b;
}

constexpr lint mod = 1000000007;
constexpr lint INF = mod * mod;
constexpr int MAX = 100010;

struct state {
    int dir, x, y;
    char c[3];
};

state rot(state t, int d) {
    state u;
    u.dir = t.dir ^ 1;
    if (t.dir == 0) {
        if (d == 0) {
            u.c[0] = t.c[2];
            u.c[1] = t.c[1];
            u.c[2] = t.c[0];
            u.x = t.x - 1;
            u.y = t.y;
        } else if (d == 1) {
            u.c[0] = t.c[1];
            u.c[1] = t.c[0];
            u.c[2] = t.c[2];
            u.x = t.x;
            u.y = t.y - 1;
        } else {
            u.c[0] = t.c[0];
            u.c[1] = t.c[2];
            u.c[2] = t.c[1];
            u.x = t.x + 1;
            u.y = t.y;
        }
    } else {
        if (d == 0) {
            u.c[0] = t.c[1];
            u.c[1] = t.c[0];
            u.c[2] = t.c[2];
            u.x = t.x;
            u.y = t.y + 1;
        } else if (d == 1) {
            u.c[0] = t.c[0];
            u.c[1] = t.c[2];
            u.c[2] = t.c[1];
            u.x = t.x - 1;
            u.y = t.y;
        } else {
            u.c[0] = t.c[2];
            u.c[1] = t.c[1];
            u.c[2] = t.c[0];
            u.x = t.x + 1;
            u.y = t.y;
        }
    }
    return u;
}

int main() {
    string s;
    cin >> s;
    set<pii> S = {{0, 0}};
    state t;
    t.dir = t.x = t.y = 0;
    rep(i, 3) t.c[i] = 'a' + i;
    for (auto c : s) {
        rep(i, 3) if (t.c[i] == c) {
            t = rot(t, i);
            break;
        }
        S.insert({t.x, t.y});
    }
    printf("%d\n", S.size());
}