#include<iostream>
int main(){

void checkTrianglr(int side1, int side2, int side3){
    if(side1 + side2> side3 && side1 + side3 > side2 && side2 + side3> side1){
        std::cout<<"Valid"<<std::endl;
    } else {
        std::cout << "Invalid" << std::endl;
    }
}