//这题也是水题
#include <bits/stdc++.h>
using namespace std;
const int N = 505;
int planned[N];
int total[N];
int main()
{
int n, k;
while (cin >> n >> k)
{
int ans = 0; // sum of additional hours
for (int i = 0; i < n; i++)
{
cin >> planned[i];
total[i] = planned[i];
}
for (int i = 0; i < (n - 1); i++)
{
int sum = total[i] + total[i + 1], temp;
if (k > sum)
{
temp = k - sum; ans += temp; total[i + 1] += temp;
}
}
cout << ans << endl;
for(int i = 0; i < (n - 1); i++)
cout << total[i] << " ";
cout << total[n -1] << endl;
}
return 0;
}
