Pattern Program

C program to print following pattern.
1
3*2
4*5*6
10*9*8*7

#include<stdio.h>
int main() {
    int n,i,j,k=1,kk;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        if(i%2==0){
            kk=k+i;
            k=kk;
            for(j=1;j<=i;j++){
                printf("%d",--kk);
                if(j!=i)
                    printf("*");
            }
        }
        else{
            for(j=1;j<=i;j++){
                printf("%d",k++);
                if(j!=i)
                    printf("*");
            }
        }
        printf("\n");
    }
}
Sample Input
4
Sample Output
1
3*2
4*5*6
10*9*8*7

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