Lena Silkina@helenasilkinaFollow BadgesProblem SolvingCPPPythonDays of CodeDays of JSDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehelenasilkina has not updated employment details yet.Educationhelenasilkina has not updated education details yet.LinksGithubhttps://github.com/helenasilkina Skillshelenasilkina has not updated skills details yet.