What do you mean by monthly expenses?

Heavenly stems and earthly branches is called "stem" for short, and there are ten branches of trees: A, B, C, D, E (wù), Ji, G, Xin, Ren (rén) and Gui (Gu ǐ); Twelve earthly branches: Zi, Ugly, Yin, Mao (mǐ o), Chen (chén), Si (sǐ), Wu, Wei (wèi), Shen, You (yǒu), Xu (xū) and Hai. Heavenly stems and earthly branches is combined into the following sixty timing serial numbers as the names of calendar year, month, day and hour, which is called "chronology of cadres and branches". The order of the sixties is 1 ~ 10. Jia Zi B Chou Bing Yin Ding Mao Wuchen Wu Guiyou 1 1~20 Jia Yi Hai Bing Zi Ding Chou Mao Xin Si Ren Wu Guiwei 2 1~30 Shen Jia Yi You C. 8+0~40 Wu Jia Yi Wei Bing Shen Ding You Wuxu Jihai Geng Zi Xin Chou Ren Yin Gui Mao 4/kloc-. Chronology of cadres and branches The New Year began in beginning of spring in 2009, and February 4th began in Lichun, so February 4th, 2009 was the ugly year after beginning of spring, before which it should be the Year of Wuzi. People who are not familiar with this point are prone to make mistakes, so pay special attention. The first algorithm: how to convert the AD calendar year into the trunk calendar year: Different data algorithms are different, and some give formulas, but they are essentially the same thing. Here is a simple and intuitive algorithm. First, give each aerial stem and aerial branch a number, and sort them from 4, with aerial stem 10 followed by 1. Ground branch 12 is followed by 1. Tiangan: A 4, B 5, C 6, D 7, E 8, Ji 9, Geng 10, Xin 1, Ren 2, Gui 3: Zi 4, Ugly 5, Yin 6, Mao 7, Chen 8, Si 9, Wu 10, Wei 60. For example, in 2003, its mantissa was 3, and the corresponding heavenly stem was "decyl"; Divide 2003 by 12 to get 166, the remainder is 1 1, and the corresponding branch is not. So 2003 is the year of "Ghost Guard". Please note that this refers to the year after beginning of spring in 2003, and before beginning of spring, it should be a "noon" year. Mr. Wang pointed out in "Sacrifice to the Dead" that Qingming is the fourth solar term (beginning of spring, rain, fright, vernal equinox, Qingming) after beginning of spring, so Mr. Zhao said that one year is dead, not in the afternoon. The second algorithm: 1. Sky-dried algorithm: the number of years minus 3 and then divided by 10 (excluding quotient) is the number of digits corresponding to the sky-dried; 2. Earthbranch algorithm: the number of years minus 3 divided by 12 (excluding quotient) is the number of digits corresponding to earthbranch; Tiangan: A, B, C, D, E, Ji, G, Xin, Ren, Gui: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai. We take 2065438+. Heavenly stems algorithm: 20 10-3=2007, 2007/10 = more than 200, 7, 7 corresponds to the seventh place of heavenly stems is Geng, that is, heavenly stems are Geng; Ground branch algorithm: 20 10-3=2007, 2007/ 12= 167, the third place of the ground branch is yin, that is, the ground branch is yin; To sum up, 20 10 is the year of Geng Yin in heavenly stems and earthly branches. In order to convince you of this algorithm, I will give another example to illustrate it: Example 2. We take 1987 as an example; Heavenly dry algorithm: 1987-3= 1984,1984//kloc-0 =198; 4 corresponds to the fourth place of Tiangan, that is, Tiangan is D; Ground branch algorithm: 1987-3= 1984,1984/12 =165, where the fourth digit of the ground branch is the radix, that is, the ground branch is the radix; To sum up, 1987, the year of heavenly stems and earthly branches was taken as the year of Ding Mao. The third algorithm: firstly, the heavenly stems and earthly branches is numbered as follows: Tiangan: A, B, C, D, E, J, G, Xin, N, G4567891KLOC-0/23 earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, N and then. In this way, the year of A.D. was converted into the year of dry support. For example, in AD 1995, the corresponding heavenly stems were found to be "B" with a mantissa of 5 in that year; Then, divide 1995 by 12 to get the remainder of 3, and use the remainder of 3 to find out that the corresponding branch is "sea". So, AD 1995 is the second year of the lunar calendar. Another example is: A.D. 186 1 year, the mantissa of the aerial stem quilt 1 was found as "symplectic", the remainder was divided by 1 and then the remainder of the aerial stem quilt 1 was found as "unitary". Then, 186 1 year is the year of the lunar calendar. If the mantissa of a year is 0 or the remainder of the year divided by 12 is 0, then 10 "Geng" in the heavenly stems and 12 "Shen" in the earthly branches are taken. For example, in the year of 120, the mantissa 0 was taken as the "Geng" in the heavenly stems; Divided by 12, the remainder is 0, so take 12 "Shen" in the ground branch. Then, the year 120 is the year of Gengshen. If the Gregorian calendar year is a single number, you can use it to look it up in heavenly stems and earthly branches. For example, in AD 6, the corresponding "C" and "C" were found in heavenly stems and earthly branches.