#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( A == 0 && B == 0){
		if( T== 1){
			printf("NO\n");
		}else{
			printf("YES\n");
			if(T%2==1){
				dir[2] = 1;
				dir[3] = 1;
				dir[4] = 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");
			}
		}
	}else{
		
		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;
}