var studentID = [111: "Eric", 112: "Kyle", 113: "Butters"]
print("Initial Dictionary: ", studentID)
var removedValue = studentID.removeValue(forKey: 112)
print("Dictionary After removeValue(): ", studentID)
var someDict:[Int:String] = [1:"One", 2:"Two", 3:"Three"]
var removedValue = someDict.removeValue(forKey: 2)
print( "Value of key = 1 is (someDict[1])" )
print( "Value of key = 2 is (someDict[2])" )
print( "Value of key = 3 is (someDict[3])" )