t,a,b=gets.split(" ").map(&:to_i)
min = a > b ? a : b
if t < min
    puts "NO"
    exit
end
if min==0
    if t<=1
        puts "NO"
    else
        puts "YES"
        while t > 0
            if t == 3
                puts "^>"
                puts "v"
                puts "<"
                exit
            end
            t-=2
            puts ">"
            puts "<"
        end
    end
    exit
end
puts "YES"
while t > min+1
    t-=2
    puts ">"
    puts "<"
end
if t > min
    t-=2
    if a!=0 && b!=0
        a-=1;b-=1
        puts ">"
        puts "^"
    else
        puts "^>"
        puts "<" if b==0
        puts "v" if a==0
    end
end
while t > 0
    t-=1
    if a!=0 && b!=0
        puts "^>"
    else
        puts "^" if b==0
        puts ">" if a==0
    end
    a-=1 if a>0
    b-=1 if b>0
end