$ XABACUS, MOTIF_TOYS, Abacus X widget           X-BASED ABACUS-         ==============  Abacus X widget, V4.3     E     One of the motivations of this abacus program is simplicity. This G     was originally a demonstration that I could write a window program.   A     Use "mouse-left" to move beads. Note you can move them faster =     by holding down the button and sweeping across beads. Use -     "mouse-right", "C",or  "c" to clear. "Q", '     "q", or "CTRL-C" keys kill program.    