91       case '>' => (pc + 1, mp + 1, mem)  | 
    91       case '>' => (pc + 1, mp + 1, mem)  | 
    92       case '<' => (pc + 1, mp - 1, mem)  | 
    92       case '<' => (pc + 1, mp - 1, mem)  | 
    93       case '+' => (pc + 1, mp, write(mem, mp, sread(mem, mp) + 1))  | 
    93       case '+' => (pc + 1, mp, write(mem, mp, sread(mem, mp) + 1))  | 
    94       case '-' => (pc + 1, mp, write(mem, mp, sread(mem, mp) - 1))  | 
    94       case '-' => (pc + 1, mp, write(mem, mp, sread(mem, mp) - 1))  | 
    95       case '.' => { print(sread(mem, mp).toChar); (pc + 1, mp, mem) } | 
    95       case '.' => { print(sread(mem, mp).toChar); (pc + 1, mp, mem) } | 
    96       case ',' => (pc + 1, mp, write(mem, mp, Console.in.read().toByte))  | 
    96       case ',' => (pc + 1, mp, write(mem, mp, scala.io.StdIn.readByte()))  | 
    97       case '['  =>   | 
    97       case '['  =>   | 
    98 	if (sread(mem, mp) == 0) (jumpRight(prog, pc + 1, 0), mp, mem) else (pc + 1, mp, mem)   | 
    98 	if (sread(mem, mp) == 0) (jumpRight(prog, pc + 1, 0), mp, mem) else (pc + 1, mp, mem)   | 
    99       case ']'  =>   | 
    99       case ']'  =>   | 
   100 	if (sread(mem, mp) != 0) (jumpLeft(prog, pc - 1, 0), mp, mem) else (pc + 1, mp, mem)   | 
   100 	if (sread(mem, mp) != 0) (jumpLeft(prog, pc - 1, 0), mp, mem) else (pc + 1, mp, mem)   | 
   101       case _ => (pc + 1, mp, mem)  | 
   101       case _ => (pc + 1, mp, mem)  |