#include "stdafx.h"
#include "iostream"
using namespace std;
int main()
{
int i;
int sum=0;
int x;
int a = 6;
for (i = 1950; i < 2012; i++)
{
if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0)
{
x = 366 % 7;
if (x + a > 7)
x = x - 1;
else
x = x + a;
}
else
{
x = 365 % 7;
if (x + a > 7)
x=x + a - 7;
else
x = x + a;
}
if (x == 7)
{
sum++;
cout << "i= " << i;
cout << ", sum = " << sum << endl;
a = x;
}
else
a = x;
}
return 0;
}