#include <float.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <math.h>
#ifdef __cplusplus
#include <bits/stdc++.h>
#endif

#include <float.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <math.h>
#ifdef __cplusplus
#include <bits/stdc++.h>
#endif

char stribuf[2200010];
uint32_t stribufl;

#define getchar_unlocked() stribuf[stribufl++]
uint32_t nextpint(void){ char c=getchar_unlocked(); while(c<'0'||'9'<c) c=getchar_unlocked(); uint32_t x=0; while('0'<=c && c<='9'){ x=x*10+c-'0'; c=getchar_unlocked(); } return x; }
void printint(uint32_t x){ if(x<0){x=-x; putchar_unlocked('-');}else if(x==0){putchar_unlocked('0');} int d=0; char s[10]; while(x){ s[d]='0'+x%10; x/=10; d++; } for (int i=d-1; i>=0; i--) putchar_unlocked(s[i]); putchar_unlocked('\n'); }
void rsort_str(void *base, const int count, const int size);

char str[200000][11];

int main(void){
	read(0, stribuf, sizeof(stribuf));
	uint32_t n=nextpint();
	for(uint32_t i=0; i<n; i++){
		char *s=str[i];
		char c=getchar_unlocked();
		while(c!=' '&&c!='\n'){ *s++=c; c=getchar_unlocked(); }
		*s='\0';
	}
	rsort_str(str, n, 11);
	uint32_t ans=1;
	for(uint32_t i=1; i<n; i++){
		if(strcmp(str[i], str[i-1])) ans++;
	}
	printint(ans);
}

void rsort_str(void *base, const int count, const int size){
	char (*a)[size]=base;
	char (*b)[size]=malloc(count*size);
	int c[0x100];
	for(int j=9; j>=0; j--){
		memset(c, 0, sizeof(c)); for(int i=0; i<count; i++){ c[a[i][j]]++; } for(int i=1; i<0x100; i++) c[i]+=c[i-1]; for(int i=count-1; i>=0; i--){ memcpy(&b[--c[a[i][j]]], a[i], size); }{void *t=a; a=b; b=t;}
	}
	free(b);
}
