/in/lab4.c: In function 'main':
/in/lab4.c:31:50: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
                     } else if (command[i] >= '0' && command[i] <= '9' || command[i] == '.') {
                                ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/in/lab4.c:125:47: warning: operation on 'TOP2' may be undefined [-Wsequence-point]
                                     print[TOP2++] = stack[TOP2 - 1];
                                           ~~~~^~