#include <stdio.h>
#include <stdbool.h>
#include <math.h>

bool isPrime(int toBeTested){
    int iterationMax = 0, nowCheck = 2;
    bool isPrime = true;
    iterationMax = sqrt(toBeTested);
    do {
        if (toBeTested % nowCheck == 0) {
            isPrime = false;
            break;
        }
        nowCheck++;
    }
    while (nowCheck <= iterationMax);
    return isPrime;
}

int main() {
    int n, p1;
    scanf("%d", &n);
    if (n < 4 || n % 2 == 1) {
        printf("input error");
    }
    else {
        for (p1=3;;p1+=2) {
            if (isPrime(p1) && isPrime(n - p1)) {
                printf("%d = %d + %d", n, p1, n-p1);
                break;
            }
        }
    }
    return 0;
}