std

#include <stdio.h>

int qread() {
    int ans = 0;
    char ch = getchar();
    while(ch<'0' || ch>'9') {
        if(ch == EOF) return -1;
        else ch = getchar();
    }
    while(ch>='0' && ch<='9') {
        ans = ans*10 + ch-'0';
        ch = getchar();
    }
    return ans;
}

int d[201], i;

int main() {
    int cnt = qread();
    while(cnt > 0) { d[cnt]++; cnt = qread(); }
    for(i = 1; i <= 200; i++) if(d[i] > 0) printf("%d %d\n", i, d[i]);
    return 0;
}