void _main(){unsigned char data;data=' ';data=(unsigned char)rand();{unsigned char result=data-1;printHexUnsignedCharLine(result);}}
static void main(){unsigned char data;data=' ';data=(unsigned char)rand();{unsigned char result=0;if (data > 0){result=data-1;printHexUnsignedCharLine(result);}else{printLine("Input value is too small to perform arithmetic safely.");}}}