# Best solution, found by Paul Hoogendijk, Eindhoven (professional)
# 
# End time: 23:49 hours  (469 minutes)
# Total time parents: 5241 minutes
# Average time per parent : 262.05 minutes
#
# Scheme with conversations Xyyzz in right order per parent
# Xyyzz is interview with teacher X, starting at time yy:zz hours
#
#parents 1:
e1832 b1848 f1933 n1948 m2017 g2048 p2127
#parents 2:
a1824 g1846 c1941 e2001 f2043 d2051 j2116 h2125 b2144 k2158 m2237 n2306 p2332
#parents 3:
b1600 d1609 e1618 h1633 g1740 m1812 j1836 p1905 n1928 r1941
#parents 4:
k1725 b1755 c1847 e1914 d1946 f2006 h2025 g2033 a2043 j2055 l2113 m2136 n2203 p2229
#parents 5:
a1705 b1721 m1739 e1812 c1830 l1849 h1902 n1958 p2020 r2041
#parents 6:
b1639 d1654 f1701 c1732 h1759 g1809 k1846 l1959 m2030 r2055 n2140
#parents 7:
b1651 c1700 j1738 l1756 h1805 n1900 p1924 r2012
#parents 8:
a1727 d1751 c1914 f1945 j2024 k2056 g2138 m2200 p2213 r2245
#parents 9:
a2147 b2221 k2239 c2308 m2317 p2337
#parents 10:
a1635 d1709 c1815 e1858 g1913 j1948 l2029 m2052 p2109 r2127
#parents 11:
a1602 d1632 f1649 e1709 g1728 h1744 j1802 n1836 l1904 r1915
#parents 12:
a1847 b1925 g2002 d2040 f2051 c2109 j2128 k2139 n2151 l2203 r2311
#parents 13:
d1851 a2003 e2033 f2104 k2122 j2144 h2218 l2233 p2311 r2341
#parents 14:
e1717 b1743 c1800 f1821 j1923 h1958 k2012 l2057 m2118 n2131 p2140 r2215
#parents 15:
a1934 b2002 c2047 d2120 f2143 h2153 j2209 k2227 n2242 l2306 
#parents 16:
b1939 c2004 d2019 k2041 h2101 f2122 l2136 r2152 n2229
#parents 17:
c1624 f1639 g1648 h1725 e1744 p1754 r1812
#parents 18:
b1908 l1924 d2005 f2022 e2116 g2230 j2257 k2310 p2324 n2332
#parents 19:
c1634 b1657 d1720 a1745 g1821 k1835 m1848 n2020 r2137 p2155
#parents 20:
c1600 b1620 e1637 j1655 f1722 l1821 n1849 r1857 p2027