var a =3;
var b =-7;
var c=2;
if(a>0 && b>0 && c>0)
{
    console.log("This sign is +");
}
else if(a<0 && b<0 && c<0)
{
    console.log("This sign is -");
}
else if(a>0 && b<0 && c<0)
{
    console.log("This sign is +");
}
else if(a<0 && b>0 && c<0)
{
    console.log("This sign is +");
}
else
{
    console.log("This sign is -");
    console.log("From this Block")
}