void _main(){char data;data=' ';fscanf (stdin, "%c", &data);{char data_copy=data;char data=data_copy;{char result=data-1;printHexCharLine(result);}}}
static void main(){char data;data=' ';fscanf (stdin, "%c", &data);{char data_copy=data;char data=data_copy;{char result=0;if (data > CHAR_MIN){result=data-1;printHexCharLine(result);}else{printLine("Input value is too small to perform arithmetic safely.");}}}}