" <statement> <while> ￭w￭ ￭(￭ <expression> <less-than> <multiply> <term> ￭v￭ ￭<￭ <less-than> <multiply> <term> ￭n￭ ￭)￭ ￭{￭ <statement> <assign> ￭v￭ ￭=￭ <expression> <less-than> <multiply> <term> ￭v￭ ￭*￭ <multiply> <term> ￭n￭ ￭}￭