사용자:flyant(비교)보기RAWBlame되돌리기비교r1188 vs r11891[math(f(f(f(2C_1 = C_2) = 2C_2 = C_3) = 2C_4 = C_5 ))]1[math(f(f(f(2C_1 = C_2) = 2C_2 = C_3) = 2C_4 = C_5 )\cdots)]223344......