path = "TaskA02\polish_wiki_excerpt.in"
file = open(path,"r",encoding="utf8")
count = 0
lines_count = 0
used = False
lines = []
all_lines = file.readlines()
i = 0
for l in all_lines:
    length = len(l.strip())
    lines_count += 1
    used = False
    i = 0
    for char in l:
        i += 1
        if i != 1:
            if char == " " and count == 0:
                count += 1
        if (char == "p" or char == "P") and (count == 0 or count == 1):
            count += 1
        elif (char == "i" or char == "I") and (count == 1 or count == 2):
            count += 1
        elif (char == "e" or char == "E") and (count == 2 or count == 3):
            count += 1
        elif (char == "s" or char == "S") and (count == 3 or count == 4):
            count += 1
            if length == i:
                count = 0
                if used == False:
                    lines.append(lines_count)
                used = True
        elif (char == " ") and (count == 4 or count == 5):
            count = 0
            if used == False:
                lines.append(lines_count)
            used = True
        else:
            count = 0

print(lines)        
file.close()