#define _CRT_SECURE_NO_WARNINGS 1


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

void reverse(char* left, char* right) {
	assert(left != NULL);
	assert(right != NULL);
	while (left < right) {
		char temp = *left;
		*left = *right;
		*right = temp;
		left++;
		right--;
	}
}
void left_move(char* p, int m) {
	assert(p);
	int len = strlen(p);
	assert(m <= len);
	reverse(p, p + m - 1);
	reverse(p + m, p + len - 1);
	reverse(p, p + len - 1);
}

int is_left_move(char* str1, char* str2) {
	int len = strlen(str1);
	int i = 0;
	for (i = 0; i < len; i++) {
		left_move(str1, 1);
		int ret = strcmp(str1, str2);
		if (ret == 0) {
			return 1;
		}
	}
	return 0;
}
int main() {
	char arr1[] = "abcdef";
	char arr2[] = "cdefab";
	int ret = is_left_move(arr1, arr2);
	if (ret == 1) {
		printf("YES\n");
	}
	else {
		printf("NO\n");
	}
	return 0;
}