const modpow = (a, b, n) => {
    while((b & 1n) == 0n) { b >>= 1n; a = a * a % n; }
    let r = a;
    while(true) {
        b >>= 1n;
        if(b == 0n) { return r; }
        a = a * a % n;
        if((b & 1n) != 0) { r = r * a % n; }
    }
};
const gcd = (a, b) => {
    while(b != 0n) { let t = a % b; a = b; b = t; }
    return a;
};

const hrStart = process.hrtime();
let n = null;
let a = 2n;
process.stdin.setEncoding("utf8");
const reader = require("readline").createInterface({input: process.stdin});
const checkgcd = (x) => {
    let g = gcd(n, x);
    if (g > 1n && g < n) {
        console.log(`! ${g} ${n/g}`);
        const hrEnd = process.hrtime(hrStart);
        console.error(`${hrEnd[0]*1e3+hrEnd[1]/1e6}ms`);
        process.exit();
    }
}
reader.on("line", (l) => {
    if (n === null) {
        n = BigInt(l);
    } else {
        let r = BigInt(l);
        let t = modpow(a, r >> 1n, n);
        checkgcd(t - 1n);
        checkgcd(t + 1n);
        a += 1n;
        checkgcd(a);
    }
    console.log(`? ${a}`);
});