How to create a flowchart

Create a flowchart that ask the user to enter A number ( n ) and display the first n even num.

EX. N=6 2 4 6 8 10 12

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0