25
40000000 2
39999999 2
39999998 2
39999997 2
39999996 2
39999995 2
39999994 2
39999993 2
39999992 2
39999991 2
39999990 2
39999989 2
39999988 2
39999987 2
39999986 2
39999985 2
39999984 2
39999983 2
39999982 2
39999981 2
39999980 2
39999979 2
39999978 2
39999977 2
39999976 2
