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