#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;

int main(){


    char a2[100],a1[100],a3[100];
    scanf("%s",a1);         //输入的三种方式 
    printf("----------\n");
    fgets(a2,100,stdin);
    printf("----------\n");
    cin.getline(a3,100);

    strcpy(a2,a1);          //把a1给a2 

    printf("strlen(a2): %d\n",strlen(a2)); //求长度 
    //-----------------------//
    cout << "strcmp(a2,a1):"<< strcmp(a2,a1) << endl; //按字典序比较大小 
    cout << "strcmp(a3,): "<< strcmp(a3,"abc") << endl;

    puts(a2);
    printf("%s\n",a2);
    //-----------------------//
    string s;
    getline(cin,s);
    cout << s << endl;


    return 0;
}