ref: c277b9f6b3672348a2aa968c754d9dadb8928b4f dir: /examples/test.bas/
10 let i=1 20 gosub 100 30 let i=i+1 40 if i<=10 then goto 20 50 end 100 let j=1 110 print " ", i*j, 120 let j=j+1 130 if j<=i then goto 110 140 print 150 return