text
"func(0,0)=0"
"func(1,1)=1"
"func(2,2)=2"
"func(3,3)=3"
"func(4,4)=4"
"func(5,5)=5"
"func(6,6)=6"
"func(7,7)=7"
"func(8,8)=8"
"func(9,9)=9"