#include <stdio.h>

int min(int a, int b){
	if(a<b){return a;}
	return b;
}

int main(void){
	int i,j;
	int A,B,T;
	int dir[8] = {0};
	int minStep;
	int tt;
	
	scanf("%d %d %d", &T, &A, &B);
	
	tt = T;
	dir[0]=A;
	dir[1]=B;
	dir[2]=0;
	dir[3]=0;
	dir[4]=0;
	
	dir[4] = min(A,B);
	dir[0]-= dir[4];
	dir[1]-= dir[4];
	
	minStep = dir[0] + dir[1] + dir[4];
	
	if(T < minStep ){
		printf("NO\n");
	}else{
		printf("YES\n");
		if((T-minStep)%2 == 1){
			if(dir[4] != 0){
				dir[4] -= 1;
				dir[1] += 1;
				dir[0] += 1;
			}else{
				if(A==0){
					dir[4] += 1;
					dir[2] += 1;
					dir[1] -= 1;
				}else{
					dir[4] += 1;
					dir[3] += 1;
					dir[0] -= 1;
				}
			}
		}
		
		for(i=0;i<5;i++){
			for(j=0;j<dir[i];j++){
				if(i==0){
					printf("^\n");
				}else if(i==1){
					printf(">\n");
				}else if(i==2){
					printf("v\n");
				}else if(i==3){
					printf("<\n");
				}else if(i==4){
					printf("^>\n");
				}
				tt--;
			}
		}
		
		for(i=0;i<tt;i+=2){
			printf("<\n");
			printf(">\n");
		}
	}
	return 0;
}