#include <termios.h>
#include <errno.h>
#include <stdio.h>

int main(void)
{
int c;
	while ((c=getchar())!=EOF) switch (c) {
		case ' ':
			putchar('+');
			break;
		case '0' ... '9':
		case 'A' ... 'Z':
		case 'a' ... 'z':
		case '!': case '*': case '\'': case '(': case ')': case ',': /* extra */
		case '$': case '-': case '_' : case '.': /* safe */
			putchar(c);
			break;
		default:
			printf("%%%02X",c);
		}
	fflush(stdout);
	return(0);
}