DK
Size: a a a
DK
DK
M
DK
M
М
YS
df <- data.frame(from = c(662, 845), to = c (845, 662))
df[!duplicated(apply(df, 1, function(x) paste0(sort(x), collapse = ""))), ]
М
df <- data.frame(from = c(662, 845), to = c (845, 662))
df[!duplicated(apply(df, 1, function(x) paste0(sort(x), collapse = ""))), ]
YS
М
ВН
J
MS
IY
J
PU
IY
A
ОЛ
A