Compile problem

[malcamal]

Hello , I tried to compile using mcs and csc and both giving errors
mcs Program.cs
Program.cs(17,57): error CS1525: Unexpected symbol )', expecting (' or type' Program.cs(169,50): error CS1525: Unexpected symbol )', expecting (' or type'
Program.cs(172,44): error CS1525: Unexpected symbol new', expecting (' or type' Program.cs(222,44): error CS1525: Unexpected symbol )', expecting (' or type'
Program.cs(246,74): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(250,75): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(254,76): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(258,77): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(262,78): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(269,55): error CS8124: Tuple must contain at least two elements
Program.cs(269,63): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(341,74): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(345,75): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(349,76): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(353,77): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(357,78): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(428,74): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(432,75): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(436,76): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(440,77): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(444,78): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Program.cs(453,55): error CS8124: Tuple must contain at least two elements
Program.cs(453,63): error CS1525: Unexpected symbol ;', expecting (', [', or {'
Compilation failed: 23 error(s), 0 warnings
What I am doing wrong?
Could you help me with this errors?
I am using linux-ubuntu20.5