problem_6

#include<stdio.h>
int main()
{
    int a,b,c;
    scanf("%d %d %d", &a, &b, &c);
    if((a+b)>c || (b+c)>a || (c+a)>b)
        printf("It is a valid Tri-angle\n");
    else
        printf("It is not a valid Tri-angle\n");
    return 0;
}