7.14

#include<iostream>
using namespace std;
int main(){
    int a,b,c;
    cin>>a>>b>>c;
    if(a>b)
    {
        if(b>c)
            cout<<c<<"->"<<b<<"->"<<a<<endl;
        else{
            if(c>a)
                cout<<b<<"->"<<a<<"->"<<c<<endl;
            else{
                cout<<b<<"->"<<c<<"->"<<a<<endl;
            }
        }
    }
    else{
         if(a>c)
            cout<<c<<"->"<<a<<"->"<<b<<endl;
        else{
            if(c>b)
                cout<<a<<"->"<<b<<"->"<<c<<endl;
            else{
                cout<<a<<"->"<<c<<"->"<<b<<endl;
            }
        }
    }

    return 0;
}

#include<iostream>
#include<stdio.h>
#include<cstring>
using namespace std;
int main()
{
    int m=0;
    char A[10000] = { 0 };
    fgets(A, sizeof(A), stdin);
    char B[10000] = { 0 };
    fgets(B, sizeof(B), stdin);
    int lea = strlen(A);
    int leb = strlen(B);
    for (int i = 0; i < lea; i++)
    {
        m = 0;
        for (int j = 0; j < leb; j++)
        {
            if (A[i] == B[j])
            {
                m = 1;   break;
            }
        }
        if (m == 0)
            cout << A[i];
    }
    cout << endl;
    return 0;
}