实验11-1-9 藏尾诗

#include <stdio.h>
#include <string.h>
int main(void)
{
    char s[4][19];
    int len;
    
    for (int i = 0; i < 4; i++)
    {
        scanf("%s", s[i]);
    }
    
    char s1[9];
    int k = 0;
    for (int i = 0; i < 4; i++)
    {
        len = strlen(s[i]);
        for (int j = len - 2; j < len; j++)
        {
            s1[k] = s[i][j];
            k++;
        }
    }
    
    s1[k] = '';
    printf("%s", s1);
     
    return 0;
}