#include <iostream>
#include <map>
#include <vector>

using namespace std;
using ll = long long;

const ll INF = 1e18;

ll cm, cd, cc, cl, cx, cv, ci;
ll ccm, cxc, cix;

map<string, ll> p[4];

void add(int w, ll c1, ll c2, char r1, char r2) {
    ll a = min(c1, c2 / 3);
    p[w][string(1, r1) + string(3, r2)] = a;
    c1 -= a;
    c2 -= 3 * a;

    p[w][string(3, r2)] = c2 / 3;
    c2 %= 3;

    if (c1) {
        p[w][string(1, r1) + string(c2, r2)] = 1;
        c1--;
    } else {
        p[w][string(c2, r2)] = 1;
    }

    p[w][string(1, r1)] += c1;
}

bool check(ll k) {
    ccm = max(0LL, cm - 3 * k);
    if (ccm > k || ccm > min(cc, cm) || k - ccm < cd) return false;
    ll uc = cc - ccm;

    cxc = max(0LL, uc - 3 * (k - ccm));
    if (cxc > k || cxc > cx || k - cxc < cl) return false;
    ll ux = cx - cxc;

    cix = max(0LL, ux - 3 * (k - cxc));
    if (cix > k || cix > ci || k - cix < cv) return false;
    ll ui = ci - cix;

    return 3 * (k - cix) >= ui;
}

int main() {
    cin >> cm >> cd >> cc >> cl >> cx >> cv >> ci;

    ll k = 0;
    for (ll b = INF; b >= 1; b /= 2) {
        while (!check(k + b)) k += b;
    }
    check(k + 1);
    cout << k + 1 << "\n";

    p[0]["MMM"] = (cm - ccm) / 3;
    p[0][string((cm - ccm) % 3, 'M')] = 1;
    p[1]["CM"] = ccm;
    add(1, cd, cc - ccm - cxc, 'D', 'C');
    p[2]["XC"] = cxc;
    add(2, cl, cx - cxc - cix, 'L', 'X');
    p[3]["IX"] = cix;
    add(3, cv, ci - cix, 'V', 'I');
    for (int i = 0; i < 4; i++) p[i][""] = 0;

    vector<pair<string, ll>> answer;

    string r[4];
    ll u[4] = {0};
    while (true) {
        for (int i = 0; i < 4; i++) {
            while (u[i] == 0 && p[i].size()) {
                auto it = p[i].begin();
                r[i] = it->first;
                u[i] = it->second;
                p[i].erase(it);
            }
            if (u[i] == 0) {u[i] = INF; r[i] = "";}
        }

        ll uu = min(min(u[0], u[1]), min(u[2], u[3]));
        for (int i = 0; i < 4; i++) u[i] -= uu;
        string rr = r[0] + r[1] + r[2] + r[3];
        if (rr == "") break;
        answer.push_back({rr, uu});
    }

    cout << answer.size() << "\n";
    for (auto a : answer) {
        cout << a.first << " " << a.second << "\n";
    }
}