import string letters = string.ascii_lowercase + string.ascii_uppercase rs = [] t = 0 for line in open("input"): n = len(line.strip()) n //= 2 a, b = line[:n], line[n:] rs.append(set(line[:2*n])) u = set(a) & set(b) assert len(u) == 1 x = list(u)[0] #print(x) t += 1 + letters.index(x) print(t) t = 0 for i in range(0, len(rs), 3): a, b, c = rs[i:i+3] #print(a & b & c) u = a&b&c assert len(u) == 1 x = list(u)[0] t += 1 + letters.index(x) print(t)