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Language: Time
Description Let a time point be given as 6 integers y, m, d, h, min, s where 1970 <= y < 2030, 0 < m < 13, 0 < d < 32, 0 <= h < 24, 0 <= min < 60, 0 <= s < 60. Write a program which computes how many periods of a given length fit between two given time points. A period is given by a pair consisting of a positive integer and a word expressing a time unit, i.e. year or month or day or hour or minute or second. Every 4th year is a leap year, except every 100th which is not except every 400 year which is. A length of the year varies according to leap years. The same is true for the month February. Time units always start as usual, e.g., a year starts at 1st January, a month starts at its 1st day, a day starts at 0 hours 0 minutes 0 seconds, etc. A period ends after its last second. Input The input consists of blocks of lines. Each block has three lines. The first line of a block contains a time point D1 and the second line a time point D2. D1 always precedes D2. All numbers in the lines are separated by one space. You can assume that the given descriptions of time points are correct. The third line contains a time period. There is one space between the number and the word in the period definition on this line. After each block, there is one empty line. Output The output contains the lines corresponding to the blocks in the input. A line corresponding to a block contains one integer number expressing how many specified periods are contained between the given time points. Sample Input 1997 12 31 23 59 59 1998 1 1 0 0 0 1 second 2000 2 29 0 0 0 2000 2 29 23 59 59 1 day 2000 2 29 0 0 0 2000 3 1 0 0 0 24 hour 1996 12 31 20 30 0 1997 1 1 7 30 0 60 minute 1996 12 31 20 30 0 1997 1 1 7 30 0 1 hour Sample Output 1 0 1 11 10 Source |

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