#include <stdio.h>

int main(void)
{
	FILE* fp;
	FILE* fp2;
	int c;

	fp = fopen("testdata4.txt", "r");
	fp2 = fopen("testdata5.txt", "w");

	while (1) {
		c = fgetc(fp);
		if (c == EOF) break;
		fputc(c, fp2);
	}

	fclose(fp);
	fclose(fp2);

	return 0;
}