// print Hello World!
bf("++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++.."
   "+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.");

    // print @
bf(">>++++[<++++[<++++>-]>-]<<.[-]++++++++++.");

   // read 3 characters, inc by 1 and print: "abc"-->"bcd"
bf(",>,>,><<<[+.>]","abc"); println();

bf(",>++++++[<-------->-],[<+>-]<.","23"); println();  // add two digits

    // "Enter your name:", prints name backwards
bf(">+++++++++++++++++++++++++++++++++++++++++"
   "++++++++++++++++++++++++++++.++++++++++++++"
   "+++++++++++++++++++++++++++.++++++.-------------"
   "--.+++++++++++++.>++++++++++++++++++++++++++"
   "++++++.<+++++++.----------.++++++.---.>.<----.----------"
   "---.++++++++++++.--------.-----------------------------------"
   "--------.>.<>>>+[>,----------]++++++++++.<[+++++++++"
   "+.<][<]","Sam Iam\n");

    // word count
bf(File("wc.b").read(),"This\n is a test");

    // rot13
bf(File("rot13.b").read(),"This is a test 123");