def choose(s):
    try:
        return "You entered " + {
        '1' : "one",
        '2' : "two",
        '3' : "three"
        }[s]
    except:
        return "Bad input"
 
var1 = raw_input("Input a number between one and three: ")
print choose(var1)

def choose2(s):
    return "You entered " + {
    '1' : "one",
    '2' : "two",
    '3' : "three"
    }.get(s, "a bad number")
 
var1 = raw_input("Input a number between one and three: ")
print choose2(var1)