#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void solution(int num, int* result, int* size) {
    // For three consecutive integers x, x+1, x+2: sum = 3x + 3
    // So 3x + 3 = num, which means x = (num - 3) / 3
    if ((num - 3) % 3 != 0) {
        *size = 0;
        return;
    }
    
    int x = (num - 3) / 3;
    result[0] = x;
    result[1] = x + 1;
    result[2] = x + 2;
    *size = 3;
}

int main() {
    int num;
    scanf("%d", &num);
    
    int result[3];
    int size;
    solution(num, result, &size);
    
    printf("[");
    for (int i = 0; i < size; i++) {
        printf("%d", result[i]);
        if (i < size - 1) printf(",");
    }
    printf("]\n");
    
    return 0;
}