#include<bits/stdc++.h>
using namespace std;
int main()
{
int s;
map<int, int>mp;
vector<int>v;
while(cin >> s)
{
if(mp[s] == 0)
v.push_back(s);
mp[s] += 1;
}
for(int i=0;i<v.size();i++)
cout << v[i] << " " << mp[v[i]] << "\n";
return 0;
}
using namespace std;
int main()
{
int s;
map<int, int>mp;
vector<int>v;
while(cin >> s)
{
if(mp[s] == 0)
v.push_back(s);
mp[s] += 1;
}
for(int i=0;i<v.size();i++)
cout << v[i] << " " << mp[v[i]] << "\n";
return 0;
}
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