----------------------------
//!(a AND b)  same as (!a OR !b)

if (10 < x AND x < 20) {
	print("between")
} else {
	print("outside")
}

if (!(10 < x) OR !(x < 20)) {
	print("outside")
} else {
	print("between")
}

----------------------------
//!(a OR b) same as (!a AND !b)

if (x < 10 OR 20 < x) {
	print("outside")
} else {
	print( "between")
}

if (!(x < 10) AND !(20 < x)) {
	print( "between")
} else {
	print( "outside")
}

----------------------------
// items under 6 inches and no heavier than ten pounds
double inches = prompt("What size?")
double weight = prompt( "What weight?")
if (inches < 6 AND weight <= 10) {
	print( "allowed")
} 
//opposite
//(!(inches <6) OR !(weight <= 10))
if (inches >= 6 OR weight >10) {
	print( "not allowed")
}

----------------------------
// dogs must be poodles or beagles
string dogtype = prompt( "What type of dog?")

if (dogtype == "poodle" OR dogtype == "beagle") {
	print( "allowed")
}

// opposite
//(!(dogtype == "poodle") AND !(dogtype == "beagle"))
if (dogtype != "poodle" AND dogtype != "beagle") {
	print( "not allowed")
}

----------------------------
// destinations in MD cost $100, destinations in PA cost $200, $250 for VA, $150 for DE, otherwise $300
string state = prompt( "In what state is the destination?")
double cost = 0;
case state {
	"MD": cost = 100
	"PA": cost = 200
	"VA": cost = 250
	"DE": cost = 150
	default: cost = 300
}
print( "Your cost is " + cost)