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81852_0_6949.cpp: In function `int main()':
81852_0_6949.cpp:29: error: incompatible types in assignment of `int' to `long long unsigned int[21]'
81852_0_6949.cpp:32: error: incompatible types in assignment of `long long unsigned int' to `long long unsigned int[21][21]'
81852_0_6949.cpp:36: error: incompatible types in assignment of `long long unsigned int*' to `long long unsigned int[21]'
81852_0_6949.cpp:42: error: incompatible types in assignment of `long long unsigned int*' to `long long unsigned int[21]'