/* NetRexx */

options replace format comments java crossref savelog symbols

s = 'abcdefghijk'
n = 4
m = 3

say s
say s.substr(n, m)
say s.substr(n)
say s.substr(1, s.length - 1)
say s.substr(s.pos('def'), m)
say s.substr(s.pos('g'), m)

return