static void main_sink(char data){{char result=data * 2;printHexCharLine(result);}}void _main(){char data;data=' ';data=CHAR_MAX;main_sink(data);}
static void main_sink(char data){{char result=-1;if (data <=(CHAR_MAX/2)){result=data * 2;printHexCharLine(result);}else{printLine("Input value is too large to perform arithmetic safely.");}}}static void main(){char data;data=' ';data=CHAR_MAX;main_sink(data);}