#start = [[10,8,15,6], [1,9,14,5], [12,3,4,2], [7,0,11,13]] #resenje 54 ||| resenje 56, vreme 9.12100s
    start = [[13,3,1,8], [10,9,12,0], [14,2,5,11], [7,4,6,15]] # resenje 44 ||| resenje 46, vreme 7.64600s
    #start = [[11,4,9,12], [14,10,6,1], [3,7,0,5], [8,15,2,13]] #resenje 62 ||| resenje 68, vreme 11.110000s
    #start = [[10,1,0,14], [2,4,5,9], [13,12,11,6], [8,15,7,3]] #resenje 56 ||| resenje 58, vreme 11.10800s
    #start = [[3,1,4,14], [7,11,12,6], [8,5,10,13], [15,0,9,2]] #resenje 54 ||| resenje 56, vreme 11.44000s
    #start = [[7,3,5,10], [11,0,6,9], [12,15,2,14], [4,1,8,13]] #resenje 62 ||| resenje 62, vreme 11.49400s
    #start = [[14,10,7,15], [9,12,2,11], [5,6,3,13], [1,0,8,4]] #resenje 60 ||| resenje 76, vreme 14.29100s
    #start = [[9,4,8,10], [12,5,2,11], [1,15,0,13], [6,3,7,14]] #resenje 52 ||| resenje 56, vreme 8.68300s
    #start = [[0,12,9,13], [15,11,10,14], [3,7,2,5], [4,8,6,1]] #resenje 80 ||| resenje 112, vreme 18.00200s
    #start = [[0,12,10,13], [15,11,14,9], [3,7,2,5], [4,8,6,1]] #resenje 80 ||| resenje 98, vreme 14.36900s
    #start = [[0,12,9,13], [15,11,10,14], [7,8,5,6], [4,3,2,1]] #resenje 80 ||| resenje 96, vreme 17.06300s