DEFINITION MODULE CPCDosIO;

TYPE msgmode=(numbers,nonumbers);

PROCEDURE AppendStr(VAR a: ARRAY OF CHAR; b: ARRAY OF CHAR);
PROCEDURE Value(a: ARRAY OF CHAR): INTEGER;
PROCEDURE InitCPCDosIO;
PROCEDURE ReadMsg(m: msgmode);
PROCEDURE ReadWords(forcewords: BOOLEAN): INTEGER;
PROCEDURE SaveData();
PROCEDURE LoadData();
PROCEDURE PrintSolution;
PROCEDURE PrintCross;

END CPCDosIO.