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

int main()
{
	char str[] = "Kanpur";
	char ca[] = {'K', 'O', 'L', 'K', 'A', 'T', 'A', '\0'};
	char extra[30] = "e";

	printf("%d\t%d\n", strlen(str), strlen(ca));

	printf("%s\n", extra);
	strcpy(extra, ca);
	printf("%s\n", extra);

	strcat(extra, str);
	printf("%s\n", extra);

	printf("%d\t%d\t%d\n", strcmp(str, ca), strcmp(ca, extra), strcmp(extra, str));

	printf("%d\n", strcmp("a b", "ab"));
}