#include <stdio.h>

int main(){
	
	FILE *fp;
	char ch;
	int count=0;
	fp = fopen("letter.txt", "r");
	while((ch=fgetc(fp)) != EOF){
		if(ch == 'c'){
			count++;
		}
	}
	printf("c¸öÊýΪ:%d\n", count);
	
	return 0;
}