C++ :

#include <bits/stdc++.h>
using namespace std;
int n,s=0;
int main(){
	for(int i=1;i<=10;i++){
		cin>>n;
		s+=n;
	}
	cout<<278-s;
	return 0;
}

Python :

# coding=utf-8
a, b, c, d, e, f, g, h, i, j = input().split()
a = int (a)
b = int (b)
c = int (c)
d = int (d)
e = int (e)
f = int (f)
g = int (g)
h = int (h)
i = int (i)
j = int (j)
x = (a + b + c + d + e + f + g + h + i + j)
n = x
print (278 - n)