with open("day2_data.txt", "r") as f:
    x = [[ j for j in x.split() ] for x in f]

horizontal=0
depth=0

#print(x)

direction=""

for i in range(len(x)):

    direction=x[i][0]
    temp=int(x[i][1])
    
    if(direction=="up"):
        #print("up "+ str(temp))
        depth-=temp
    elif(direction=="down"):
        #print("down " + str(temp))
        depth+=temp
    elif(direction=="forward"):
        #print("forward " + str(temp))
        horizontal+=temp
    else:
        print("ERROR")

print("horizontal: "+str(horizontal))
print("depth: " + str(depth))

print("result: " + str(horizontal*depth))

    #print(direction + " " + str(temp))

        #print(temp,end=" ")
        #print("("+str(type(temp))+")",end=" ")