Answer: Only 1 string is entered
str(dayWeek) is the only string entered into the function.
str(return) is outputted, not inputted.
Numbers are not strings.
// calculate birth month based on the day of the month, day of the week, and the birth year
// dayMonth {number} - a day of a month from 1 to 31
// dayWeek {string} - the name of the day of the week
// year {number} - the birth year
// return {string} - the month you were born
BirthdayLibrary.birthMonth(dayMonth, dayWeek, year);
