using minstd_rand0 =
linear_congruential_engine<uint_fast32_t, 16807, 0, 2147483647>;
using minstd_rand =
linear_congruential_engine<uint_fast32_t, 48271, 0, 2147483647>;
using mt19937 =
mersenne_twister_engine<uint_fast32_t,
32,624,397,31,0x9908b0df,11,0xffffffff,7,0x9d2c5680,15,0xefc60000,18,1812433253>;
using mt19937_64 =
mersenne_twister_engine<uint_fast64_t,
64,312,156,31,0xb5026f5aa96619e9,29,
0x5555555555555555,17,
0x71d67fffeda60000,37,
0xfff7eee000000000,43,
6364136223846793005>;
using ranlux24_base =
subtract_with_carry_engine<uint_fast32_t, 24, 10, 24>;
using ranlux48_base =
subtract_with_carry_engine<uint_fast64_t, 48, 5, 12>;
using ranlux24 = discard_block_engine<ranlux24_base, 223, 23>;
using ranlux48 = discard_block_engine<ranlux48_base, 389, 11>;
using knuth_b = shuffle_order_engine<minstd_rand0,256>;