#include <stdio.h>

int main(void)
{
	int i, t, a, b, x=0, y=0, c=0, f=0;
	scanf("%d %d %d", &t, &a, &b);

	if( t < a || t < b || ( t==1 && !a && !b ) ) {
		printf("NO\n");
		return 0;
	}
	printf("YES\n");

	if( !c && t >= 2 ) {
		if( !a && !b) {
			printf("<v\n");
			x--;
			y--;
			c++;
		} else if( !a ) {
			printf(">v\n");
			x++;
			y--;
			c++;
		} else if( !b ) {
			printf("<^\n");
			x--;
			y++;
			c++;
		} 
	}

	while( y < a-1  && x < b-1) {
		printf("^>\n");
		x++;
		y++;
		c++;
	}
	while( y < a-1 ) {
		printf("^\n");
		y++;
		c++;
	}
	while( x < b-1 ) {
		printf(">\n");
		x++;
		c++;
	}

	while( c < t-1 ) {
		if( !f ) {
			printf(">\n");
			x++;
			c++;
			f = 1;
		} else if( f ) {
			printf("<\n");
			x--;
			c++;
			f = 0;
		}
	}

	if( a == y+1 && b == x+1) {
		printf("^>\n");
		x++;
		y++;
		c++;
	} else if( a == y+1 ) {
		printf("^\n");
		y++;
		c++;
	} else if( b == x+1 ) {
		printf(">\n");
		x++;
		c++;
	}

	return 0;
}