#include <stdio.h>
#include <math.h>
#include <string.h>

void main() {

    int N;
    int i, j;
    int n = 0;
    int m;
    int chk;
    int count;
    int flag;
    char *S;
    char buf[1000];

    fgets(buf, sizeof(buf), stdin);
    sscanf(buf, "%d\n", &N);
    count = N;
    int k[N];
    char *S = (char*)malloc(sizeof(char[10 + 1]) * 2 * pow(10, 5));
    for (i = 1; i <= N; i++) {
        fgets(buf, sizeof(buf), stdin);
        sscanf(buf, "%s\n", S[N]);
    }
    for (i = 1; i <= N; i++) {
        for (m = 0; m < n; m++) {
            flag = 0;
            if (k[m] == i) {
                flag = 1;
                break;
            } 
        }
        if (flag == 0) {
            for (j = N; j > i; j--){
                chk = strcmp(S[i], S[j]);
                if (0 == chk){
                    count--;
                    k[n] = j;
                    n++;
                }
            }
        }
    }
    printf ("%d", n+1);
    free(S);
    return;
}