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from cs50 import get_string
text = get_string("Text: ")
s = 0.0 # sentences
w = 1.0 # words
l = 0.0 # letters
c = ''
for i in range(len(text)):
# get the current letter
c = text[i]
# save the ascii value for later
j = ord(c.lower())
# if this is the end of a sentence add one to sentences
if c == '.' or c == '!' or c == '?':
s += 1
# if this is the end of a word add one to words
elif c == ' ':
w += 1
# if this is a letter add one to letters
elif 96 < j and j < 123:
l += 1
L = l / w * 100
S = s / w * 100
index = 0.0588 * L - 0.296 * S - 15.8
if index < 1:
print("Before Grade 1")
else:
ans = round(index)
if ans >= 16:
print("Grade 16+")
else:
print("Grade", ans)
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