Hello, World! in Roco

Example for versions Roco 20071014

This code uses only main coroutine; it outputs the message character by character, using their ASCII codes, and stops. 

cout 72
cout 101
cout 108
cout 108
cout 111
cout 44
cout 32
cout 87
cout 111
cout 114
cout 108
cout 100
cout 33
ac