Catterpillar can move in a given directions by leaving the given traces.

Direction Traces

N , S ===== |
E , W ==== _
NE, SW ===== \
NW , SE ===== /

Return the Character grid

Input :
Given number than space followed by direction
string "x" will be the terminating string

Example:

3 SE
3 SW
4 E
x

Ouput:
|\
| space\
| space space \
| space space /
| space /
| /
| _ _ _ _ x

Note : space = " "