#include <iostream>

using namespace std;

int oct(char *s) { return 64*(s[0]-'0') + 8*(s[1]-'0') + (s[2]-'0'); }

int main() {
	char c, s[10];
	scanf("%*c%s ",s);
	int x = oct(s);
	cout << (char)x;
	while(scanf("%c %*c%s ",&c,s)==2) {
		x += (c=='+'?1:-1)*oct(s);
		cout << (char)x;
	}
	cout << endl;
}