int getTriangles()
{
    int beam1 = 0;
    int beam2 = 0;
    int beam3 = 0;
    int tr1[3] = {0,0,0};
    int tr2[3] = {0,0,0};



    for (beam1 = 0; beam1 < (beams_counter - 2); beam1++) {

        for (beam2 = (beam1 + 1); beam2 < (beams_counter - 1); beam2++) {

            for (beam3 = (beam2 + 1); beam3 < beams_counter; beam3++) {


                     tr1[0]=beams[beam1];
                     tr1[1]=beams[beam2];
                     tr1[2]=beams[beam3];

                     if(wasThisTriangle(tr1,tr2) == 0) {

                     tr2[0]=beams[beam1];
                     tr2[1]=beams[beam2];
                     tr2[2]=beams[beam3];
                     printf("%d_%d_%d\n",beams[beam1], beams[beam2], beams[beam3]);
                     isTriangle(beams[beam1], beams[beam2], beams[beam3]);

                     }
            }

        }
    }
    return 1;
}


int wasThisTriangle(int tr1[3], int tr2[3]) {
    if (tr1[0] < tr2[0]) {
        return 1;
    }
    if (tr1[0] == tr2[0] && tr1[1] < tr2[1]) {
        return 1;
    }
    if ((tr1[0] == tr2[0]) && (tr1[1] == tr2[1]) && (tr1[2] < tr2[2])) {
        return 1;
    }
    return 0;
}