We could create stuff to replace plastic like straws,Six pack rings, and other stuff so pollution would go down and less plastic in the ocean
Well, you didn't say what language, so here's in Java:
public static void PrintShampooInstructions(int numCycles)
{
if(numCycles < 1)
System.out.println("Too few.");
else if (numCycles > 4)
System.out.println("Too many.");
else
{
for(int i = 1; i <= numCycles; i++)
{
System.out.println(i+": Lather and rinse.");
}
System.out.println("Done.");
}
}
And also in an image, in case you can't really see it
Messages travel from one computer to another until they will find a proper computer to whom that message is addressed.