#include<stdio.h>
int main()
{
    char s1[80],s2[80];
    int i;
    printf("input array s2:\n",s2);
    printf("s2",s2);
    scanf("%s",s2);
    for(i=0;i<=strlen(s2);i++)
    s1[i]=s2[i];
    printf("s1:%s\n",s1);
    return 0;
}