from math import log2
from itertools import product

input = [0,-879,308,-1198,-654,135,855,-1447,-1140,-859,-502,-56,263,544,1001,-1672,
-1427,-1257,-1110,-950,-730,-514,-327,-204,-30,112,378,526,708,903,1084,-1707,
-1632,-1509,-1409,-1302,-1234,-1171,-1099,-984,-842,-759,-648,-558,-477,-404,
-313,-258,-202,-77,-26,62,152,302,390,483,592,646,754,874,985,1072,1191,-1747,
-1675,-1642,-1594,-1526,-1475,-1437,-1394,-1347,-1292,-1254,-1214,-1188,-1137,
-1104,-1031,-986,-929,-902,-841,-787,-743,-678,-643,-591,-545,-503,-460,-425,
-367,-329,-306,-265,-232,-204,-155,-103,-75,-29,15,57,111,136,221,284,349,387,
420,469,501,525,595,615,651,709,790,837,890,974,1014,1061,1114,1170,1213,-1749,
-1730,-1692,-1672,-1645,-1625,-1604,-1575,-1536,-1517,-1491,-1468,-1443,-1420,
-1396,-1370,-1352,-1341,-1311,-1286,-1260,-1243,-1223,-1205,-1189,-1172,-1154,
-1132,-1109,-1075,-1049,-1021,-990,-973,-947,-925,-903,-885,-862,-833,-792,-764,
-747,-735,-692,-677,-651,-628,-604,-588,-560,-537,-518,-502,-475,-446,-435,-405,
-370,-355,-336,-315,-307,-293,-272,-260,-248,-228,-209,-191,-162,-138,-117,-102,
-82,-70,-53,-19,12,24,55,82,99,119,132,172,196,230,278,313,329,358,376,396,418,
439,455,472,485,508,522,539,565,596,612,636,649,677,691,729,777,806,822,849,879,
903,946,984,1001,1015,1055,1072,1101,1123,1153,1179,1199,1223,-1756,-1744,-1736,
-1725,-1700,-1690,-1679,-1670,-1658,-1644,-1631,-1624,-1606,-1588,-1580,-1569,
-1543,-1533,-1521,-1509,-1502,-1484,-1475,-1460,-1448,-1439,-1421,-1413,-1406,
-1395,-1379,-1369,-1355,-1349,-1342,-1336,-1314,-1307,-1297,-1284,-1266,-1256,
-1246,-1239,-1226,-1215,-1208,-1201,-1191,-1185,-1176,-1163,-1156,-1150,-1138,
-1123,-1113,-1106,-1088,-1073,-1054,-1044,-1032,-1012,-996,-983,-974,-968,-962,
-941,-930,-922,-915,-897,-889,-873,-864,-857,-853,-828,-796,-783,-774,-756,-748,
-743,-736,-729,-698,-686,-681,-676,-660,-644,-629,-618,-606,-600,-590,-577,-568,
-557,-543,-536,-522,-516,-505,-501,-487,-469,-452,-445,-438,-423,-415,-402,-385,
-366,-357,-348,-337,-329,-322,-313,-309,-300,-294,-286,-276,-271,-265,-259,-250,
-243,-236,-226,-214,-208,-194,-190,-179,-157,-149,-131,-124,-116,-107,-96,-84,
-75,-71,-66,-61,-46,-23,-9,2,14,22,35,52,63,71,91,98,102,115,123,131,138,170,
179,195,202,217,241,266,281,305,314,326,336,356,362,375,383,394,402,417,424,432,
441,447,457,469,473,483,488,499,511,518,528,536,542,555,572,580,603,607,624,631,
637,646,653,665,678,689,695,715,760,774,791,802,810,820,833,842,856,872,883,902,
919,933,947,966,986,995,1005,1011,1022,1033,1056,1071,1087,1098,1102,1109,1128,
1145,1157,1166,1182,1197,1206,1216,1224,-1758,-1752,-1750,-1741,-1737,-1734,
-1728,-1710,-1701,-1699,-1694,-1688,-1680,-1678,-1671,-1669,-1667,-1648,-1646,
-1639,-1634,-1627,-1625,-1622,-1615,-1593,-1591,-1586,-1582,-1575,-1571,-1568,
-1547,-1539,-1537,-1529,-1522,-1513,-1511,-1508,-1503,-1494,-1485,-1482,-1476,
-1471,-1462,-1452,-1449,-1444,-1442,-1437,-1422,-1420,-1414,-1411,-1407,-1402,
-1397,-1394,-1380,-1377,-1375,-1368,-1364,-1354,-1351,-1347,-1345,-1341,-1338,
-1334,-1327,-1313,-1308,-1302,-1298,-1294,-1290,-1279,-1276,-1265,-1259,-1255,
-1250,-1245,-1243,-1233,-1230,-1225,-1216,-1213,-1211,-1206,-1204,-1199,-1193,
-1188,-1186,-1184,-1179,-1172,-1169,-1162,-1159,-1155,-1152,-1142,-1140,-1136,
-1130,-1118,-1116,-1111,-1107,-1096,-1094,-1077,-1075,-1071,-1062,-1053,-1050,
-1041,-1033,-1024,-1017,-1011,-997,-994,-992,-979,-976,-972,-969,-967,-964,-961,
-949,-938,-931,-927,-923,-918,-916,-914,-900,-896,-894,-876,-874,-872,-870,-862,
-858,-856,-854,-852,-830,-816,-800,-792,-788,-780,-776,-773,-758,-755,-752,-747,
-745,-741,-737,-735,-730,-725,-700,-694,-688,-684,-682,-679,-677,-675,-663,-655,
-646,-640,-638,-626,-619,-616,-608,-603,-601,-596,-591,-583,-578,-575,-570,-565,
-558,-552,-545,-542,-538,-532,-529,-521,-517,-509,-506,-504,-502,-499,-494,-480,
-471,-462,-453,-451,-446,-443,-440,-428,-425,-421,-416,-413,-404,-392,-387,-377,
-370,-365,-359,-354,-350,-347,-340,-332,-330,-328,-326,-320,-318,-312,-310,-307,
-301,-298,-296,-293,-288,-281,-278,-275,-273,-270,-266,-264,-262,-258,-252,-246,
-244,-242,-237,-235,-233,-222,-219,-213,-210,-201,-195,-193,-191,-189,-182,-164,
-158,-156,-151,-147,-143,-130,-126,-120,-118,-113,-109,-104,-100,-95,-85,-82,
-80,-74,-72,-70,-67,-65,-62,-60,-50,-40,-31,-20,-14,-2,1,6,10,15,18,25,34,36,40,
59,61,68,70,73,90,92,96,99,101,107,111,116,121,124,129,133,137,143,169,172,177,
180,194,197,200,203,213,220,237,242,253,270,278,288,301,306,312,319,325,327,335,
338,343,357,361,364,374,376,382,385,393,396,398,403,415,419,423,425,431,433,440,
442,446,448,456,461,466,470,472,474,479,484,486,490,497,500,507,514,516,522,526,
531,533,538,540,547,550,561,565,574,577,583,600,604,606,616,621,625,630,632,634,
638,644,649,651,657,664,670,674,685,687,690,692,696,704,721,751,765,771,782,784,
797,800,804,807,813,817,824,832,834,841,853,855,857,865,874,878,893,900,904,907,
922,925,935,945,948,965,972,984,989,994,996,1001,1006,1009,1016,1021,1026,1031,
1037,1050,1059,1068,1076,1084,1088,1097,1099,1101,1103,1107,1110,1124,1131,1143,
1151,1154,1159,1163,1171,1181,1183,1193,1203,1205,1207,1213,1217,1222,1225]

# input = [0, -4, 9, -5, -1, 3, 12, -6, -4, -2, 0, 2, 9, 11, 13]

distance = 1238


height = int(log2(len(input) + 1))
paths = (len(input)+1)//2

table = list(product(('O', 'E'), repeat=height-1))

for i in table:
    current_abs = 0
    l = 1
    tree = input.copy()
    tree.pop(0)
    path = ""
    for oe in i:
        path += oe
        line = tree[:2**(len(path))]
        for c in path:
            if c == 'O':
                line = line[:len(line)//2]
            else:
                line = line[len(line)//2:]
        if len(line) != 1:
            print(path, tree, line)
            raise RuntimeError("Grrrr")
        l += abs(current_abs-line[0]) + 1
        current_abs = line[0]
        tree = tree[2**(len(path)):]
    if l == distance:
        print(path,l, "OK")
        break
    else:
        print(path, l)



# current_abs = 0
# step = 0


# trees = [dict(),] * paths

# print(trees)
# print()

# # for i in range(0, height):
# #     trees[i].append(i)
# #     print(trees)

# for i in range(len(input)):
#     ctr = 0
#     h = 1
#     while ctr < paths:
#         for j in range(paths//h):
#             table[i].append()

#         ctr += 1

# print()
# print(trees)