#include<stdio.h>
void generate_plus_pattern(int s){
    if(s<=0||s%2==0){
        printf("Invalid input\n");
        return;
    }
    int m=s/2;
    for(int i=0;i<s;i++){  
        for(int j=0;j<s;j++){if(i==m||j==m){
            if(i==m||j==m){
            printf("*");
        }else{
            printf(" ");
        }
        printf("\n");
    }
    }    
int main()
{
    int input1=5;
    printf("input1:%d\n",input1);
    generate_plus_pattern(input1);
    return 0;
}