#include<stdio.h>
    int main() {
    	int n,i;
    	int sum=0;
    	printf("Enter the n i.e. max values of series: ");
    	scanf("%d",&n);
    	sum = (n * (n + 1) * (2 * n + 1 )) / 6;
    	printf("Sum of the series : ");
    	for (i =1;i<=n;i++) {
    		if (i != n)
    		             printf("%d^2 + ",i); else
    		             printf("%d^2 = %d ",i,sum);
    	}
    	return 0;
    }