View Compilation Error

0_0_38939584_19153.cpp:4:17: error: stray '\243' in program
    4 |         int n, m<a3><ac>t;
      |                 ^~~~
0_0_38939584_19153.cpp:4:18: error: stray '\254' in program
    4 |         int n, m<a3><ac>t;
      |                     ^~~~
0_0_38939584_19153.cpp:5:38: error: stray '\243' in program
    5 |         while (scanf("%d%d", &n, &m) <a3><a1>= -1) {
      |                                      ^~~~
0_0_38939584_19153.cpp:5:39: error: stray '\241' in program
    5 |         while (scanf("%d%d", &n, &m) <a3><a1>= -1) {
      |                                          ^~~~
0_0_38939584_19153.cpp: In function 'int main()':
0_0_38939584_19153.cpp:4:19: error: expected initializer before 't'
    4 |         int n, m，t;
      |                   ^
0_0_38939584_19153.cpp:5:35: error: 'm' was not declared in this scope
    5 |         while (scanf("%d%d", &n, &m) ！= -1) {
      |                                   ^