N = 14;
M = 13;
R = 9;
C = 7;
a = [|824,22,958,427,694,264,796,961,635,356,982,69,220,
     |541,617,285,261,143,972,480,691,98,505,310,786,467,
     |202,257,745,711,285,101,923,162,482,636,447,128,741,
     |878,250,105,600,335,499,978,859,184,999,137,838,970,
     |383,561,869,697,343,16,765,494,688,573,615,47,904,
     |989,258,403,608,455,550,360,78,783,247,136,372,321,
     |374,196,521,831,854,871,559,580,381,582,109,609,570,
     |110,717,503,286,382,80,367,958,47,713,207,608,754,
     |279,958,411,968,703,793,76,240,170,687,519,812,907,
     |442,442,349,731,567,616,833,72,440,685,377,523,895,
     |205,280,442,158,170,945,918,933,838,24,341,276,821,
     |708,354,673,655,659,635,484,932,390,387,946,624,87,
     |978,671,602,849,210,142,416,814,995,742,669,599,889,
     |517,525,191,884,1000,336,608,313,495,270,899,167,699|];