import re

frq={}

f=open('1.txt', 'r', encoding='utf-8-sig')
f2 = open('2.csv', 'w', encoding = 'utf-8-sig')
file=f.read()
years = re.findall('([0-9]+(?: [\\w]*|\.[0-9][0-9])(?: [0-9]+|\.[0-9]+))', file)
cents= re.findall('[IVX]+', file)

for i in years:
    if i not in frq:
        frq[i] = 1
    else:
        frq[i] += 1

for i in cents:
    if i not in frq:
        frq[i] = 1
    else:
        frq[i] += 1


for i in frq:
    f2.write(str(i)+';'+str(frq[i])+'\r\n')

f.close()
f2.close()