637,637,639,641,642,647,648,649,650,651,651,653,653,654,655,656,655,653,651,650,648,647,643,642,642,641,638,638,639,639,638;772,766,765,763,762,761,762,763,767,767,769,771,772,772,774,776,777,778,778,779,781,781,784,783,781,780,780,778,776,775,773