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Compile Error

gcd.cpp: In function ‘int main()’:
gcd.cpp:20:6: error: no match for ‘operator>>’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘int’)
20 | cout>>c;
| ~~~~^~~
| | |
| | int
| std::ostream {aka std::basic_ostream<char>}
gcd.cpp:20:6: note: candidate: ‘operator>>(int, int)’ <built-in>
20 | cout>>c;
| ~~~~^~~
gcd.cpp:20:6: note: no known conversion for argument 1 from ‘std::ostream’ {aka ‘std::basic_ostream<char>’} to ‘int’
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:45,
from gcd.cpp:1:
/usr/include/c++/9/cstddef:140:5: note: candidate: ‘template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)’
140 | operator>>(byte __b, _IntegerType __shift) noexcept
| ^~~~~~~~
/usr/include/c++/9/