t,y;main(x){scanf("%d%d%d",&t,&y,&x);for(puts(t<x|t<y|t+x+y==1?t=0,"NO":"YES");t--;puts(""))x<t?putchar(60),x++:x--&&putchar(62),y%2-t%2&&putchar(y--<t?y+=2,118:94);}