Example 15: Draw a flowchart to receive a positive whole number and determine how many of its digits in odd positions are 7. For instance, if the input is 6475672, the output should be 1 because there is only one 7 in an odd position (position 5). As another example, if the input is 12345, the output should be 0. Note: You are not allowed to use any built-in function from any programming language. Also, you are not allowed to use array or treat the input as a string. Instead, you should separate the digits by basic math operations