256期7*7*7*7*7：0123478*0123468*0123478*0234678*0123478

255期7*7*7*7*7：0125689*0235689*0123569*0123589*0235689错

254期7*7*7*7*7：2346789*2356789*2345679*2346789*2456789错

253期7*7*7*7*7：1245789*0124578*0145789*0124579*0245789错

252期7*7*7*7*7：0236789*0234789*2346789*0246789*0246789错

251期7*7*7*7*7：0234579*0235679*2345679*0245679*0234679错