2517,2518,2518,2519,2520,2520,2521,2522,2522,2521,2522,2522,2521,2522,2522,2520,2519,2519,2518,2518;1187,1186,1185,1185,1185,1184,1184,1183,1184,1185,1186,1187,1188,1189,1190,1191,1191,1190,1189,1188