#include <stdio.h>

int main() {

    int a, b, c;

    printf("Enter 3 integers.\n");
    scanf("%d%d%d", &a, &b, &c);

    if (a+b > c && a+c > b && b+c > a)
        printf("These are valid sides of a triangle.\n");
    else
        printf("These are NOT valid sides of a triangle.\n");

    return 0;
}