Count to 100, but with a catch! Choose symbols to be used in specific conditions, fail to select one and you RESTART! The symbols and explanations are below. < - Press on odd numbers. > - Press on even numbers. ( - Press on multiples of 3. ) - Press on multiples of 5. * - Press on palindromes. + - Press on numbers with their digits in ascending order. For example, 123 is good but not 122 or 132. - - Press on numbers with their digits in descending order. For example, 521 is good but not 555 or 502. ^ - Press on numbers with more odd digits than even digits. v - Press on numbers with more even digits than odd digits. ? - Press on numbers with their sum of digits a multiple of 5.
Tips: - Multiples of 3 have their sum of digits multiples of 3. - Multiples of 5 have their last digit 0 or 5. - Palindromes are numbers which are the same written backwards. Because the numbers are at most 3 digits long, you should check if the first and last digit are the same. - Try to leave the symbols you're least comfortable with last. - If you fail, you don't lose your symbols. Zero is a multiple of any integer, and one digit numbers are palindromes and have their digits in both ascending and descending order.
