int a = 30;

if( a == 10 )
{
printf("Value of a is 10\n" );
}
else if( a == 20 )
{
printf("Value of a is 20\n" );
}
else if( a == 30 )
{
printf("Value of a is 30\n" );
}

Given the source code above, what would output to the command prompt or terminal window?