#include "bits/stdc++.h"
using namespace std;
using ll = long long;

const ll N = 1e6 + 1;
const ll M = 1e9 + 7;

ll jump_x_y(ll x, ll y, ll n, ll k) {
    if (y - x >= k) return 1;
    return 1e18;
}

ll jump_x_1_y(ll x, ll y, ll n, ll k) {
    if (x - 1 >= k && y - 1 >= k) return 2;
    return 1e18;
}

ll jump_x_n_y(ll x, ll y, ll n, ll k) {
    if (n - x >= k && n - y >= k) return 2;
    return 1e18;
}

ll jump_x_n_1_y(ll x, ll y, ll n, ll k) {
    if (n - x >= k && n - 1 >= k && y - 1 >= k) return 3;
    return 1e18;
}

ll jump_x_1_n_y(ll x, ll y, ll n, ll k) {
    if (x - 1 >= k && n - 1 >= k && n - y >= k) return 3;
    return 1e18;
}

ll jump(ll x, ll y, ll n, ll k) {
    ll res = 1e18;
    res = min({
        jump_x_y(x, y, n, k),
        jump_x_1_y(x, y, n, k),
        jump_x_n_y(x, y, n, k),
        jump_x_1_n_y(x, y, n, k),
        jump_x_n_1_y(x, y, n, k),
    });
    if (res == 1e18) return -1;
    return res;
}

void doTest(ll testID) {
    ll t, n, k, x, y; cin >> t >> n >> k >> x >> y; if (x > y) swap(x, y);
    if (t == 0) {cout << y - x << '\n'; return;}
    if (t == 1) {cout << jump(x, y, n, k) << '\n'; return;}
    if (k == 1) {cout << "1\n"; return;}

    // TH1: k = 2 => BC = B0, BL = -1, 1, 2, 3
    if (k == 2) {
        if (n <= 2) {cout << "-1\n"; return;}
        if (n == 3) {cout << "-1\n"; return;}
        if (t % 2 == 0) {cout << y - x << '\n'; return;}
        else {cout << jump(x, y, n, k) << '\n'; return;}
    }

    // TH2: k = 3
    if (k == 3) {
        if (n >= 7 || n <= 5) {cout << "-1\n"; return;}
        if (t > 3) {cout << "-1\n"; return;}
        cout << ((x == 3 && y == 4) ? "1\n" : "-1\n"); return;
    }

    // TH3: k >= 4
    if (k >= 4) {cout << "-1\n"; return;}
}

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

    int test = 1; 
    cin >> test;
    for (int _ = 1; _ <= test; _ ++) doTest(test);
}