Nếu chưa biết cách thì đây nhé: c1469 càng 12345678= 512s 101,110,111,121,112,131,113,141,114,151,115,161,116,171,117,181,118,191,119,104,140,124,142,134,143,144,154,145,164,146,174,147,184,148,194,149,106,160,126,162,136,163,156,165,166,176,167,186,168,196,169,109,190,129,192,139,193,159,195,179,197,189,198,199,201,210,211,221,212,231,213,241,214,251,215,261,216,271,217,281,218,291,219,204,240,224,242,234,243,244,254,245,264,246,274,247,284,248,294,249,206,260,226,262,236,263,256,265,266,276,267,286,268,296,269,209,290,229,292,239,293,259,295,279,297,289,298,299,301,310,311,321,312,331,313,341,314,351,315,361,316,371,317,381,318,391,319,304,340,324,342,334,343,344,354,345,364,346,374,347,384,348,394,349,306,360,326,362,336,363,356,365,366,376,367,386,368,396,369,309,390,329,392,339,393,359,395,379,397,389,398,399,401,410,411,421,412,431,413,441,414,451,415,461,416,471,417,481,418,491,419,404,440,424,442,434,443,444,454,445,464,446,474,447,484,448,494,449,406,460,426,462,436,463,456,465,466,476,467,486,468,496,469,409,490,429,492,439,493,459,495,479,497,489,498,499,501,510,511,521,512,531,513,541,514,551,515,561,516,571,517,581,518,591,519,504,540,524,542,534,543,544,554,545,564,546,574,547,584,548,594,549,506,560,526,562,536,563,556,565,566,576,567,586,568,596,569,509,590,529,592,539,593,559,595,579,597,589,598,599,601,610,611,621,612,631,613,641,614,651,615,661,616,671,617,681,618,691,619,604,640,624,642,634,643,644,654,645,664,646,674,647,684,648,694,649,606,660,626,662,636,663,656,665,666,676,667,686,668,696,669,609,690,629,692,639,693,659,695,679,697,689,698,699,701,710,711,721,712,731,713,741,714,751,715,761,716,771,717,781,718,791,719,704,740,724,742,734,743,744,754,745,764,746,774,747,784,748,794,749,706,760,726,762,736,763,756,765,766,776,767,786,768,796,769,709,790,729,792,739,793,759,795,779,797,789,798,799,801,810,811,821,812,831,813,841,814,851,815,861,816,871,817,881,818,891,819,804,840,824,842,834,843,844,854,845,864,846,874,847,884,848,894,849,806,860,826,862,836,863,856,865,866,876,867,886,868,896,869,809,890,829,892,839,893,859,895,879,897,889,898,899
Dàn 2: c1469 càng 23456789= 512s
901,910,911,921,912,931,913,941,914,951,915,961,916,971,917,981,918,991,919,904,940,924,942,934,943,944,954,945,964,946,974,947,984,948,994,949,906,960,926,962,936,963,956,965,966,976,967,986,968,996,969,909,990,929,992,939,993,959,995,979,997,989,998,999,201,210,211,221,212,231,213,241,214,251,215,261,216,271,217,281,218,291,219,204,240,224,242,234,243,244,254,245,264,246,274,247,284,248,294,249,206,260,226,262,236,263,256,265,266,276,267,286,268,296,269,209,290,229,292,239,293,259,295,279,297,289,298,299,301,310,311,321,312,331,313,341,314,351,315,361,316,371,317,381,318,391,319,304,340,324,342,334,343,344,354,345,364,346,374,347,384,348,394,349,306,360,326,362,336,363,356,365,366,376,367,386,368,396,369,309,390,329,392,339,393,359,395,379,397,389,398,399,401,410,411,421,412,431,413,441,414,451,415,461,416,471,417,481,418,491,419,404,440,424,442,434,443,444,454,445,464,446,474,447,484,448,494,449,406,460,426,462,436,463,456,465,466,476,467,486,468,496,469,409,490,429,492,439,493,459,495,479,497,489,498,499,501,510,511,521,512,531,513,541,514,551,515,561,516,571,517,581,518,591,519,504,540,524,542,534,543,544,554,545,564,546,574,547,584,548,594,549,506,560,526,562,536,563,556,565,566,576,567,586,568,596,569,509,590,529,592,539,593,559,595,579,597,589,598,599,601,610,611,621,612,631,613,641,614,651,615,661,616,671,617,681,618,691,619,604,640,624,642,634,643,644,654,645,664,646,674,647,684,648,694,649,606,660,626,662,636,663,656,665,666,676,667,686,668,696,669,609,690,629,692,639,693,659,695,679,697,689,698,699,701,710,711,721,712,731,713,741,714,751,715,761,716,771,717,781,718,791,719,704,740,724,742,734,743,744,754,745,764,746,774,747,784,748,794,749,706,760,726,762,736,763,756,765,766,776,767,786,768,796,769,709,790,729,792,739,793,759,795,779,797,789,798,799,801,810,811,821,812,831,813,841,814,851,815,861,816,871,817,881,818,891,819,804,840,824,842,834,843,844,854,845,864,846,874,847,884,848,894,849,806,860,826,862,836,863,856,865,866,876,867,886,868,896,869,809,890,829,892,839,893,859,895,879,897,889,898,899