#include <iostream>
using namespace std;
 
int main() {
	// your code goes here
int sum=0;
while(1){
int a;
cin >> a;
if(a==-1) break;
sum+=a;
}
cout << sum;
	return 0;
}

I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCmludCBzdW09MDsKd2hpbGUoMSl7CmludCBhOwpjaW4gPj4gYTsKaWYoYT09LTEpIGJyZWFrOwpzdW0rPWE7Cn0KY291dCA8PCBzdW07CglyZXR1cm4gMDsKfQ==

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

10000
4900
4500
1100
2630
3700
10000
3000
4500
9000
1900
4500
45000
4000
900
7600
2500
1700
9000
10000
9000
4500
3000
1100
11750
5100
9000
1500
4500
11300
4500
9000
4500
1000
2000
1500
1000
3300
4100
1400
9300
1900
10000
9000
26300
1000
3000
2850
1800
4500
3800
10000
9000
800
9000
4300
4500
4100
2500
4500
700
1600
850
1500
800
1000
11500
9000
13100
1500
4100
3000
1050
5500
1000
2300
2000
3300
3000
3050
1050
1200
4500
1000
7300
1400
9000
6900
4900
10000
2200
8400
4200
11200
2000
34550
4500
3500
5000
4400
4500
54650
1500
9000
45000
7300
4500
2500
5000
4500
9000
3000
4500
4500
2400
2200
50
850
1000
9000
2900
5400
6600
3000
4500
4500
2400
2200
50
850
1000
9000
2900
5400
6600
5900
4500
1200
900
4500
1200
3200
18800
14850
38700
1100
6500
8500
20800
4500
4500
15000
4500
1400
2000
1500
2000
1500
8200
7200
1000
3200
1600
9000
5000
2800
6200
2100
13000
4500
1000
5800
2200
1000
10000
3900
4000
4500
10000
2700
9000
4900
1000
12100
2000
9000
5800
3050
1800
4500
9000
13200
1000
20950
9000
9000
3600
8300
1800
10000
5200
2200
9100
9000
10000
1050
2000
9000
3000
-1