Hackerrank "Bot saves princess" AI problem in python3

#1

i’m trying to solve this challenge in Hackerrank Challenge
But it’s not work properly, Can you please help me to figure out what’s wrong with my code?

def displayPathtoPrinces(n,grid):
    if grid[0][0] == 'p':
        print("UP")
        print("LEFT")
    elif grid[0][n - 1] == 'p':
        print("UP")
        print("RIGHT")
    elif grid[n - 1][0] == 'p':
        print("DOWN")
        print("LEFT")
    else:
        print("DOWN")
        print("RIGHT")

m = int(input())
grid = []
for i in range(0,m):
    grid.append(input().strip())

displayPathtoPrinces(m,grid)
#2